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Edson Catelogue Steering. Binnacle



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MARINE STEERING SYSTEMS, STEERING W WELS, AND BILGE PUMPS . . . . . . . A COMPLETE MANUAL
THE EDSON CORP., 460 INDUSTRIAL PK. RD., NEW BEDFORD, MA 02745 TEL. 617) 995-9711

CATALOG
{#+y
Aft Cockpit Planning ......... 4243 -. Auto-Pilot Planning ..........40-41 Auto-Pilot Rapid Drive .......... 41 . Self Bear~ngs. Aligning .......... 10 Binocular Holders .............. 29 Brake Pedestal ................29 Brake Rack & Pinion. Worm ...... 9 Bulkhead Steerers ........... 14-16 Cables Engine Controls ......... 34 Chain ........................ 25 Chain Idlers ................... 17 Clevises .................. . 2 7.34 Compasses . . . . . . . . . . . . . . . . . . . .52 Compass Covers ........... . 2 9.52 Compass Pedestals . . . . . . . . . . . . . 10 Couplings. Shaft ................10 Data Sheets . . . . . . . . . . . . . . . . . . .53 Engine Controls ............ . 34.35 Glass Holders .................. 3 1 Guards ....................... 28 Hydraulic Adapter Kits .......... 18 Idlers . . . . . . . . . . . . . . . . . . . . .17.22 Installation. Auto-Pilot ........ 4041 Installation Pedestals . . . . . . . .. 4 6-50 Installation. Pull.Pul1 ......... . 36-39 Installation. Rack &Pinion ....... 7-8 Installation. Worm ........... 12-13 Instrument Housings ........ . 32.33 Maintenance. Pedestal ..........51 Maintenance. Pull.Pull ........ 38. 51

INDEX BY SUBJECT
Maintenance. Rack &Pinion ....... 9 Maintenance. Worm ............ 13 Mid-Ship Cockpit Planning ... .44. 45 Offshore Quadrant & Idler ....... 17 Pedestals .................. . 2 0.21 Pull-Pull Steering ............ 3639 Push-Pull Cables . . . . . . . . . . . . . . . 34 Pumps .................... . 54.56 Pump Accessories .............. 56 Quadrants ............... 17.26.27 Rack and Pinion ............... 6 9 Radial Drive ................... 23 Seats ......................... 30 Sheaves. Chain ................ 17 Sheaves. Wire Rope ............ 24 Sheave Bracket ................ 22 Stuffing Boxes ................. 27 Sprockets . . . . . . . . . . . . . . . . . . . . .16 Tables .................... . 30.3 1 Tiller Arms .................... 27 Umbrellas ..................... 28 Universals .................... 10 Wire Rope .................... 25 Wheel Adapters ................. 4 Wheel Covers ................. 29 Wheel Hub ..................... 2 Wheels. Steering............... 2-4 Worm Steerers .............. 11-13 Worm Steerers Accessories . . . . . . 10

LETTER TO OUR CUSTOMERS
Dear Friends: Edson5 newest Catalog represents all the latest developments from our 122years o f designing and manufacturingbilge pumps and marine steering systems. We owe a deep gratitude to not only our staffhere at Edson. but to you. who have contributed many excellent suggestions and comments. The corporation was founded in 1859 by Jacob Edson. who lived in the Boston area and invented the diaphragm pump . Other early products. produced by Edson. include deck hardware such as anchor and cargo winches. portholes. galvanized sheet metal pumps. and worm steering systems. Later on. Edson produced the Geared Quadrant Steerer that was used on virtually all early catboats. A product now out o f this catalog. but even though first produced in 1895. we can still furnish spare parts . The large worm steerers were favored for the large schooners o f the early 19005. Among them were King George V's "Britannia",Kaiser Willhem5 "MeteorIII" and many. many others. Edson takes great pride in the development o f new products and new ideas and the catalog illustratesover 15 new steering and pump products all designed to broaden the Edson specialty o f steerers and pumps . The Edson Corporation is committed to bringing you the finest in quality products and to continually add to our line and to give you the very best in "Sudden"and "Reliab1e"service . Sincerelyyours.

.

..

.

a great deal of leg room for helmsman

.

khead Steerers and two 36" Elkhide Covere inless Steel Destroyer Wheels .

.

THE EDSON CORPORATION LIMITED WARRANTY
..r

President
Fig .

t a
An Edson Pedestal in a beamy catboat is a ble the traditional with the modem using Fig Steerer. Fig 644SE Wheel (Elkhide Cover). and 708Engine ControI. II sorts of fun activion Fig 603C-30" Teakwheel withTeak up a fiberglass cockpit and gives the of personality. Note the handy teak a sandwich ora drink

.

A 6448 28" Stainless Steel Wheel and an Edson Ffg a20 Bridge Deck Steerer mounted behind the traveler offers the helmsman his own aft steerina oosition for better visibility

.

One of the many features of the Rack and Pinion Ffg 346 is the comfortable steering position using a h a 6448 . 24" wheel on a raised seat for etter visibility over the cabin top

.

combination Here can bkseen a custom windtable or 4 glasses or a plate

.

.

The Edson Corporation ("Edson")warrants to the original consumer purchaser of this product. that it is free from defects in materials and 7 workmanship. Edson's responsibility is limited to repair or. at Edson's ' election. replacement of any defective product and does not include any charges for removal. reinstallation or incidental or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages. so the above limitation or exclusion may not apply to you . Expiration: This Warranty and any implied warranties shall expire one ( 1 ) year from the date of purchase; provided. however. that if any product is used for any commercial activity. this warranty shall expire ninety (90)days from date of purchase . Some states do not allow limitations on how long an implied Warranty lasts. so the above limitation may not apply to you . Exceptions: The above warranty does not apply: to metal finishes or coatings; to a product not installed or maintained following Edson's instructions. damaged by casualty or improper use. repaired or modified by other than Edson personnel. installed in a vessel or manner judged by Edson to be an inappropriate application o f its product. or used with other products incompatible with the Edson product or which adversely affectits performance or durability. Claim Procedure: ( 1 ) Immediately upon purchase. complete and mail to Edson the Owner Information Card accompanying Edson's equipment. i f any. (2) Immediately upon discovery of any apparent defect. notify your vendor. the builder of your boat. or Edson. describing such defect; (3) the Vendor. boatbuilder or Edson shall make a preliminary determination as to whether a warranty claim is justified and. i f so. (4)upon request. Edson shall authorize return of the product . NO product shall be returned until authorized by Edson. (5)After such authorization. return the product. freight prepaid. with proof of purchase. if no owner information card has been filed with Edson. to: r The Edson Corporation. 460 Industrial Park Rd., New Bedford. MA 1 0 2 7 4 5. (6)I f found defective Edson shall repair or replace the product * and return it at Edsonir expense if destination is within continental U.S.A. or. i f not. or i f special freight required. at owner's expense . Other Rights: This Warranty gives you specific legal rights. and you may also have other rights which vary from State to State.

No .

.

Page 100.... 57

INDEX BY FIG NUMBER Fig . Fig . No . Page No . Page No . Page
Fig . 420.... 21 671.... 56

Fig .

743.... 24

No .

Page 812.... 31

.

460 Industrial Pk . Rd. Tel .(617) 995-9711 The Edson Corporation New Bedford. MA 02745 Telex 95-1337

Printed in U.S.A.

10/8@20M

Q Copyright 1980

CRAFTED WHEELS
These beautifully crafted wheels will give years of service and pleasure to the owner who wants the best workmanship on his yacht, work boat, or fishing boat. These are not mass production wheels, but are all hand made from throroughly seasoned stock, carefully selected for matching grain and color. Rims and felloes are rigidly secured by brass fastening capped with holly plugs. Each spoke is hand fitted so the wheel cannot loosen at the hub, an important feature not found on production wheels.
Overall diameter wheel sizes Inches 1cm 20150.8 22155.8 24160.9 26166.0 28171.1 30176.2 32181.2 34186.1 36191.4 38199.0 401101.6 421106.6 Teak Rim Fig 687 Teak Yacht Wheel Fig 601C 6 lbs12.7k 8 lbsl3.6k 1.9 lbs1.86k 16 IbsR.2k 1.11 Ibsl.5k 20 ibsl9k 2.0 Ibsl.9k 22 IbsllOk 2.5 Ibsll.l3k 23 lbl10.5
'I,

\

'4 LI

DESTROYE P WHEELS
The most popular of all Edson Steering Wheels was originated by Edson and is a registered Trade Mark of this Corporation. Edson offers four models including the stainless steel wheel the vinyl coated wheel, the leather covered stainless steel wheel and the teak rim wheel. Being smooth, they do not catch clothing and with their lightness are very sensitive and eliminate the flywheel effect of the heavier wheels. With the Fig. 698 wheel adapter and our ability to manufacture virtually all specials, these wheels are adaptable to most all makes of steerers. Wheel sizes 18" to 40" are six spoke wheels; 44" to 72" and larger are 8 spoke. Larger sizes are available upon request.
Stainless Steel Wheel Sizes lncheslcm Fig. 644s 5 lbs12.3k 18145.7 5 lbsl2.3k 20150.8 5 lbsl2.3k 22155.8 6 lbs12.7k 24160.9 6 lbsl2.7k 26166 7 IbsI3.l k 28171.1 8 lbs13.6k 30176.2 9 lbsl4.l k 32181.2 34/85 10 lbs14.5k 36191.4 38196 Vinyl Coated Fig. 644V 5 lbsl2.3k 8 lbsl3.6k 7 Ibsl3.l k 9 lbsl4.l k 8 lbs13.6k on request 10 lbs14.5k 11 lbs14.9k

-.

FIG 601 Teak Wheels

Teak Yacht Wheel with teak rim installed Fig 603 6 Spoke 7 1b13.2 9 1b14.1 6 Spoke 6 Spoke 6 Spoke 8 Spoke

1.7 lbs1.77k

I
Teak Rim 6 lbs12.7k

Polished Bronze Fig. 644B

I

Bronze w l Teak Handle Fig. 602B

1

26 Ibsll l.7k

I
(
1/4

28 lb113

11

Note: Unless otherwise specified - all wheels will be furnished with
1"12.54cm bore size. 2-318"/6cm hub length, and approximately 2 weeks lead time. "11.9cm key size.

Note: These hand-crafted wheels are made for each specific order. allow

Teak Yacht Wheels - Have a highly polished FIG 601 & 603 chrome bronze hub. Fastenings are plugged with handsome holly bungs. The Fig 601 teak wheels are standard spoked wheels, and the Fig 603 teak wheels come with a laminated 1 inch diameter teak rim installed. FIG 687 Teak Rims An all teak laminated rim, usually factory installed on Edson Wheels but available for do-it-yourselfers. The rims are approximately 1 "12.54cm in diameter and will add a total of 2"/5cm to the overall wheel diameter. With the rim you have the warmth of wood and a non-snagging smooth wheel. On an existing wheel we must know the outside diameter of the spokes. Rims supplied in 5 sizes shown in above chart. All rims are supplied unvarnished. FIG 602 Bronze Spoke Wheel with Teak Handles. For those who prefer tradition, Edson offers hand cast bronze wheels with teak handles. These wheels are not mass produced and the surfaces are subject to variations. See chart on page 3. FlG.667 Wheel Hubs For those who prefer to make their own mahogany or teak wheel, Edson will provide the polished bronze or chrome bronze hub. All wheel hubs will be furnished with a 1 "12.54cm bore, 23/sU/6.03cmhub length, and 1 h "/1.91cm key size, unless otherwise specified. For 20" through 26" wheels, spokes require 1 % "/3.18cm square wood stock and for all larger sizes 28" through 42" spokes require 13/sn/3.49cmsquare wood stock.
Bronze Hub Chrome Hub Fig 667C Fig 6678
SlZE 2 Recommended Hub Size For Wheels 20" lhru 26" SlZE 4 Recommended Hub Size For Wheels 28" lhru 34" SlZE 6 Recommended Hub Size For Wheels 36" thru 42"

-

11

18 Ibsl8.lk 28 lbs112.6k Note: Wheels are all nominal sizes 31 lbs113.9k and may vary slightly in diameter. 601152 641162 33 Ibsll4.8k I I I 721181 35 lbs115.7k Note: All wheel will be furnished with 1"/25.4mm bore size, 2%"6cm hub length, and % "16.35mm key size unless otherwise specified.

1
1

I
I

I

I

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FIG 602 Bronze Spoke Wheel with Teak Handles

Hub No. of O.D. Spokes

4 1bs11.8k

4 Ibsll.8k

4"

6

6 lbs12.7k

6 lbs12.7k

5'/4"

8

9 Ibsl4.lk

9 lbsl4.lk

6"

8

Fig 667 Wheel Hubs

FIG. 6448 Stainless Steel Wheel. The yachtsman's favorite; the stainless wheel has a gleaming rim of ovalized 1" tubing with solid stainless spokes for sizes 18" through 48" and hollow stainless spokes for sizes 54" through 72". These wheels are fabricated from the finest stainless steel, they are smooth, highly polished and lightweight. FIG. 644V Vinyl Coated 'Aluminum Wheel. A smooth grey vinyl is coated (fusion bonded) over an aluminum casting to produce this never hot never cold to the touch, steering wheel. FIG. 834 Teak Rim Wheel. Edson's custom Teak Rim Destroyer Wheels come with 1/2 " stainless steel spokes and an all new exclusive stainless steel wheel hub, enabling the spokes to be internally welded at the hub. The Edson rim is laminated in three thicknesses of Teak and finished to an easy gripping I1h" diameter. The teak rim is warm to the touch, beautiful in appearance, and feather light for the ultimate in feeling. Edson's Teak Rim Wheel is available in 5 sizes through 38" in diameter. The wheel is delivered with the rim unfinished ready to be either varnished or treated with an exterior teak finish. As each wheel is custom made please allow about 10 days for delivery. FIG. 733 Leather Covering Kit. For do-it-yourselfers Edson offers leather kits for new orexisting wheels.The kit includes the leather covering, pre-waxed sail twine and the needle. All we need is the correct diameter of the wheel. A strong, simple and quick cross stitch should be used. For example, a28" wheel can be covered in about three hours. FIG. 644SE Leather Covering for New Wheels. The ultimate luxury - a very soft leather covering that can be applied to all Fig. 644 Stainless or Vinyl Destroyer Wheels. For new wheels with leather covering sewn on at the factory, see the price page under Fig. 644SE. FIG. 716 Leather Covering for Your Present Wheel. Send your wheel t o Edson and we will sew the leather covering on for you. Costs per wheel size are listed under Fig. 716 in the price page.

WHEELS AND
FIG 688 Character Wheels
FIG 688 Character Wheels Edsonls Character Wheel i r $ designed to fit the many "character" boats now being built.\-' Edson has substituted corrosion resistant aluminum for the old style galvanized iron to get a wheel that is light, non-magnetic, and equipped with teak handles, in effect, modern materials and concept for an old style product.

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A GUIDE TO SELECT NG YOUR STEERING SYSTEM
Not too long ago wheel steering was only associated with large ocean racing and traditional sailboats. The rapidly growing trend towards wheel steering has changed to include cruising and racing sailboats as small as 18 feet. Many people once believed the only way toget theUfeel'-of a sailboat was with a tiller.The popularity of wheel steering as well as its practicality has shown even the most adamant tiller man that "better feel" and "better boat control" can be obtained with wheel steering. Without the tiller sweeping theentire cockpit, the crew can perform more functionally, guests can relax more comfortably, and short-handed family sailing suddenly becomes simple. Planning a steering system for a tiller conversion, or an option on a new boat is not a casual matter and should be done with the utmost thought and consideration. More time should go into the planning of acockpit than any other part of the boat, this is where the crew spends the vast majority of their time whether the boat is for cruising or racing. Moreover, the cockpit is the base for handling sails as well as steering. Thus, in this one area of the boat, comfort, convenience, performance and safety are all equally vital factors, neglect even one and the pleasure of sailing is in ieooardv.
A major part of planning agood steering installation islocating thesteerer. This must take intoconsideration location of the rudderpost, winches, main sheet, and engine controls. All must be located properly or moved to the appropriate location for a functional and comfortable cockpit. The aft cockpit steering location is normally associated with , h t ,e older traditional design where a worm gear type steerer atiachesdirectly to a rudderpost located in the aft end of the cock' O p i t . It is also the location used for the New Edson Rack and Pinion Steerer installed abovedeck directly toarudderpost located in thevery aft end of the cockpit, or with atransom hung rudder. The pedestaltypesteerer is often locatedwell aft in thecockpit in cruising and racing boats (minimum distance 21 inches from the pedestal centerline to the aft cockpit bulkhead). Theadvantageof any of theseaft steering installations is that the helmsman is well aft out of theway of crew members working winches. From this position the helmsman sees all the action, can cast off sheets or tail winches, participate in cockpit conversation, and has a complete view of the sails and rig. In the mid-cockpit installation the helm is farther forward where the boat is wider so the helmsman can get more outboard; instruments mounted in the cabin bulkhead can be'easily read; the winches and cleats are more accessible to the helmsman whether they are forward or aft of the helm. On a cruising boat this location clears the aft end of thecockpit forcrew members or guests not needed for handling sheets. Neither the backstay nor main sheet need interfere with the helmsman standing behind the wheel, and the helmsman has sufficient room to brace his feet without restriction. With the helm in mid-cockpit, winch location does become critical, especially when installing wheel steer in^ in an exist in^ c o c k ~ iwhere t winch locations are fixed. concentrating both winches and helm in the middle of the cockpit can be most inconvenient for both helmsman and crew. The forward cockpit installation places the helmsman close to the companionway .under the protection of a dodger, out of the way of winches and main sheet, and in a wide part of the boat where head sails can be easily viewed. ,f~i)~ho~~ing the type of steerer is specifically covered on its ,_I ,ppropriatepage of this catalog, however, each has certain characteristics which are best suited for a particular type boat. Rack and Pinion Steering is most useful on boats from 16 to 40 feet where space under the cockpit floor is limited, or for those small sailboats with transom hung rudders, such as the trailerable models. The inboard rudder models that are particularly well suited are those with the rudderpost coming through the aft

1

Wheel Size Alum. No. 20n150:8 1 6 8 8 A

1

Spokes No. 6

1

Wt. k 612.7

FIG 685

1

FIG 685 Flying Bridge Wheels For cruisers and sport fishermen with flying bridges and smaller, open high speed fishermen with console steering positions. The wheels are "dished" 2"/5cm and are cast of nonmagnetic aluminum. Warm t o the touch, these aluminum wheels have a fushion bonded coating of grey vinyl. All Edson Wheels can be easily adapted to fit steerers of other manufacture by using a Fig 698 Edson Adapter and an Edson wheel nut. Furnish Edson the size of your wheel shaft and the make and model of your steerer.

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411.8k 612.7k 20"50.8cm 1 685V FIG 604Stainless Steel Spoke Wheel with Teak Handles-A traditional wheel with modern materials the Fig. 604 wheel is fabricated with a gleaming rim of ovalized tubing and solid stainless spokes internally welded at the hub for maximum strength and a smooth neat appearance. Sizes 24", 30", and 36" available.
FIG 673 Wheel N
36"191.4 cm 6 lbs12.7 K

Wheel Size Fig. No. 16"40.6cml 685V

1 1

Spokes No. 3 3

I 1

Weight

914.1
1014.5

.TyI

S.S. S ~ o k Wheel e wl~eak Handles

FIG 826 Quick Release Wheel Nut. For those who have oversized() wheels and wish to have access t o cockpit seat lockers or who wish to'remove the wheel for protection against theft, the Quick Release Wheel Nut enables the removal of your wheel quickly and easily. Available in two thread sizes: 3 h "-10 and 1"-14. FIG. 673 Wheel Nuts. Edson's wheel nuts are available in a choice of three materials, glossy black plastic, Chrome Plated Forged Brass, and Polished Brass. The Black nut is a molded product that is easily tightened on the shaft and has a built in friction device to eliminate ioosening by vibration. The Black nut will stay shiney and new for years and is now standard on ail Edson steerers.

@ :

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FIG 826 Quick Release Nuts

3

I

Thread Size
In-14"

314"-10" Fig No.

FIG 698 Wheel Adapter The answer for installing Edson wheels on steerers of other makes. Simple and strong, the adapter is made of brass and furnished with a stainless steel locking pin stainless steel wheel key. Orders must include the and a lhN make and model of the steerer. See the price page for available adapters. Remember to order 3 items, the wheel, the adapter, and the wheel nut. FIG 858 Leather Chafing Gear The same leather material as used for wheel rim covers is now available as scraps for chafing gear in a 4 t o 6 oz. bag. Complete hides measuring approximately 20 square feet are also available, see price pages. FIG. 684 Stainless Steel Keystock for Wheel Shafts. Standa$dd, Square Size and Length 1 h " x 11/2" - All Edson pedestal ar steerer wheel shafts come complete with stainless steel k e k d ~ stock as standard equipment. Edson's keystock will not rust like steel, and is tougher than brass. When ordering as a spare for h " x 11/ 2 ". Other sizes and Edson wheel shafts always specify 1 lengths available upon request.

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I

Chrome Black Fig No. 673C 673L

Pol.

I

1

Brass

Fig No. 6738

1

bridgedeck, or the very aft part of the cockpit floor. The Rack and Pinion can virtually be plugged into these set-ups with a minimumamount of installation effort with the exception of building a cover over the steerer to serve as a helm seat. Worm Gear Steering is often referred to as "Non-Reversing". meaning the feedback from the rudder will not normally turn the wheel when the helmsman lets go of the wheel. These steerers are most often used on traditional boats with aft raked inboard rudders. Because of the rake, it is often impossible t o install a quadrant underthe cockpit floor. This type of steerer is attached directly to the rudderpost above the cockpit floor at right angles to the rudderpost. The steerer shaft may be fitted with a universal and an extra bearing to build in the exact wheel angleforacomfortaljle helm. A wheel box must be built overthe steerer to serve as a helm seat .This box can be kept as narrow as possibleso the helmsman can sit behindoralong side the wheel. The box can have a flip up top to serve as a seat back for long watches at the wheel. Engine controls can be located right on the sideof the helm seat within easy reach of the helmsman. Despite the worm gear steerer being non-reversing, there are always those boats with an exce~tional weather helm. or oarticularlv hard steering. For these boats, we now offera fridtion 'shaft brak; for all sizes of worm steerers. Bulkhead Steerers are most advantageous for power boats, motorsailers, two station steering Mid-Ship Cockpit boats, and bridge deck console type steering stations, generally found on custom racing boats. Bulkhead steerers can be purchased for very small boats using direct sprocket and chain drive as well as 2:l and 3:l geared reduction sprocket and chain steerers for very large commercial vessels, such as fishing boats and tug boats. Pedestal Steering is well suited for both mid-ship cockpit and aft cockpit boats with inboard rudders as well as transom hung rudders. This system requires space under the cockpit floor for mounting sheaves, sheave bracket, or Radial drive^^ Steering System. It offers maximum flexibility in that any number of sheaves may be mounted to route wire rope around engine spaces, through aft cabins or around fuel tanks, etc.The pedestal type system comprised of sprocket, chain and wire rope can be used very efficiently for both cruising and racing boats up to 80 feet by varying the size of the steering wheel and the size of the quadrant toeffectively changethe poweroutput necessaryto sail your boat. This steerer is very popular and most versatile when planning your cockpit for "convenience" accessories, such as brake, guard, tables, instrument housings, engine controls, helm seat and auto-pilot drives. Pull-Pull Steering is a new system offered by Edson as an alternative to a sheave and wire rope system. This System can be used with either Bulkhead or Pedestal Steerers with inboard or outboard rudder boats. It is most advantageous for Mid-Ship Cockpit and Aft Cabin boats when routing the steering cables from the Center Cockpit to the rudderpost can become complicated. The Pull-Pull System uses standard Edson components in conjunction with flexible conduit housing 7 x 19 stainless steel wire rope. Unlike push-pull cables such as those used on engine controls, pull-pull is always in tension. The result is very positive steering control without the play and lost motion generally associated with a Push-Pull Cable. Each steering section of the catalog shows a chart for selecting the recommended size steering system for your boat. Each chart is composed of information gathered from our many years of leadership in marine steering. Due to the many variations in yacht design in areas of hull shape, engine horsepower, and sail configuration, final recommendations must be approved by your Naval Architect andlor,builder.

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FIG 698 Wheel Adapters For Wheel Adapter Sheet EB 214 write or call the Edson Corp.

RACK AND P

ON STEERERS

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r

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2 1

RACK AND PINION STEERERS
The Rack Forward Steerers are for those boats with little or no room aft of the rudderpost. There are two models, each having distinctive uses. These should be carefully evaluated.

Rack and Pinion

Designed for transom hung rudder, inboard rudder, double ended boats with d+---l" board rudder, racing and cruising boats to about 40 feet, these steerers offer the answer for those requiring a compact, powerful and sensitive wheel system for their craft. Positive response provides the helmsman with complete feel of the rudder.The transom hung models offer 1.6 turns of the wheel lock to lock in 70" and the inboard models, 1.8 turns to lock in 80". Easeof installation is primary feature.Transom hung rudder models attach directly to the rudder through a slot approximately 2 " x 6" in the transom. lnboard rudder models attach to the rudderpost or rudderpost extension and are available for mounting either fore or aft of the rudderpost.The steerer frames then bolt onto theaft deckorsuitable mounting surface. You need only build asimple strong combination seat and cover for over the steerer. Rack and pinion steerers are ruggedly constructed of bronzeand bronzealloys with 1" stainless steel wheel shaft andhardware. ~ h e s materials e were tested and proven for their extra wear resistance, reliability, and will provide years of trouble free performance.

Fig 347 Forward Mounted Rack and Pinion Steerer. This steerer attaches directly to the rudderpost and the wheel is parallel to the rudder~ost. The "A" on the shaft dimension is standard at 21" or is available to suit. See chart below for steerer sizes. Fig 346 Forward Mount Rack and Pinion Steerer complete with shaft universal and a 1" Self-Aligning Bearing. This steerer is the same basic model as the Fig. 347, but it incorporates a shaft universal. This pivots at a point 141/z1' forward of the rudderpost. The self-aligning bearing is

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RACK AND PINION PLANNING
TRANSOM HUNG RACY & PINION

I
Size
175

RUDDER THICKNESS CHART
Rudderstock

I
Weight

Weight

Size

Rudderstock

Fig 341 (incheslcm
1-314 4.4

I

Ibs.
24

I

k

Fig 342

inches cm

350

1

3-112 18.9

1

28

--

1 12.7 1 /
,I

I

I

I

350

1 3.112

,
18.9

1

,

..

31 114.0

The Edson Rack and Pinion Steerers are made in four different configurations: transom hung rudder steerers, two different types of inboard rudder steerers and a rack and pinion steerer for double enders. These steerers mount 90" to the rudder axis. ~or.boats with forward rakes, or extreme aft rakes on this axis, the steerers are available with a shaft universal and an additional bearing. Shaft universals can change wheel rakes to 30 degrees in either direction. To allow the helmsman to steercomfortabl~, the top of the wheel should be located about 32"180.2cm up from the cockpit sole. lnall cases keep the seat low enough so the helmsman's feet are firmly planted on the cockpit floor or other brace. If they are left dangling the circulation will be cut off and the position becomes uncomfortable. ~oatswith rudderposts located too low in the cockpit can use the Fig 782 rudderpost extender and Fig 675 coupling to raise the steering assembly to the required height. Edson will be glad to assist in the selection of the correct rack and pinion for your boat. Just send in the top and side view construction drawings of your boat or, if these are not available, a simple sketch with dimensions and a photograph will help.

lnboard Rack and Pinion

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SELECTION GUIDE

... . .- --

Helm Seat

Built in

FIG 341

TRANSOM HUNGRUDDERSTEERERS

Rack and pinion steerers are in most cases straight forward. The variables a d "A" or shaft length, rudderstock for transom-hung rudders, rudderpost size for inboard rudders and wheet angle. Taking these one at a time. 1. The "A" or shaft dimension is the distance from the axis on which the rudder turns to the aft face of the wheel hub. If you intend on buildina a helm seat over the steerer, be sure to add 6 to 8 inches for ieg clearance between the forward edge of the seat and the wheel. If there is any question, make the shaft a little long as it can be made shorter on the job. 2. The width of the rudder or rudderstock dictates the size for transom hung rudder steerers Fig 341 and Fig 342. If in doubt, get the next wider jaws as you can always shim the sides of the casting. The jaws on the gear rack are drilled at the time of installation. 3. The rudder post diameter determines the size of rack and pinion steerers for inboard rudders. Refer to the size charts for Fig 343, 344, 346 and 347. 4. All models of rack and pinion steerers are available with shaft universals if you want to raise or lower the wheel angle. Fig 341 Transom Hung Rudder Steerer. This steerer attaches directly to the rudder through a slot in the transom and the wheel is parallel to the Pintle Line. The "A" dimension is standard at 21 inches or is available to suit. Fig 342 Transom Hung Rudder Steerer. Complete with shaft universal and 1" self-aligning bearing. This steerer is the same basic model as the Fig 341, but it incorporates a shaft universal. This pivots at a point of 14-112" forward of the Pintle Line. The self-aligning bearing is placed forward of the universal as close to the wheel as possible to keep the wheel with a solid feel. The shaft universal can change the shaft angle up to 30 degrees. The same steerer sizes apply to the 342 as the 341.

'-L (

FIG 346 wlUniversal

Provision for Removable Emergency Tiller

INSTALLATION INSTRUCTIONS
Attach the rack to the rudder or rudderpost at a 90" angle. Align the steerer housing on the rack and check to make sure the height and angle of the wheel shaft are correct. Securely bolt the housing in place on the aft deck or mounting platform. Make sure this surface has suffi? . ient strength as it must absorb all of the steering loads. If required, :tlJ einforce it. Stops, such as wooden blocks shown to the right, should now be installed on both sides of the steerer to limit its travel to the desired arc. The box over the steerer should be waterproof yet. readily removable. If you intend this box to double as a helmsman seat, be sure to build it high enough to allow good visibility over the cabin top. Provisions for emergency steering should be made by fitting a removable tiller on top of the rudder post.
" ; " '

lL 0 A 1
Ft - M to 25

IL W L I
Ft
to 22

SIX. Inches 18 - 20 20 22 22 24

In Ft L&

ORDERING INFORMATION
7
7% 9

26 - 30 31 - 36

23 25 26 - 31

-

-

273 300 360

2 29 27

6

When ordering a Rack and Pinion Steerer, please specify the Figure number, size, type of boat and description. For inboard steerers. the rudder~ost diameter and key size is necessary. Unless otherwise stated, the keyway hill be onquadrant side. If the steerer is to be used with a tubular rudderpost please sd=, ) , vise and you will be supplied with a 318 inch pin, pilot drilled through the cap of t h J quadrant. Also advise the "A" or shaft length that best fits your installation. When determining a wheel shaft length be sure tb include the thickness of the face of the wheel box, space needed for an auto-pilot drive sprocket, or length required for a Fig 783 Brake, (about 2-114"). Wheel shafts are 1 " stainless steel and are machined to accept Edson Wheels with 1" bore by 2-318" bore length, with a 114" keyway. Inboard Rudder Rack and Pinions are bored and keyed at the factory if the sizes are specified. If not they will be supplied with a pilot bore.

With Proper I?udder Stops and Auto-Pilot Note: All screws and bolts should be tight, and should be checked regularly to insure that they remain tight.

7

TRANSOM HUNG RUDDERS
RACK AND PINION STEERERS

ny
id

AFT MOUNTED RACK AND PINION
RACK AND PINION STEERERS
The Rack Aft steerers are for those boats with at least 12 inches of space aft of the rudderpost and limited space forward. The basic dimension of the gear should be carefully noted as it is important to place the wheel about 32 inches up from the cockpit sole to allow the helmsman to steer comfortably.

Designed specifically for double ended boats up to about 38' with transom hung rudders. Edson's new model Rack and Pinion Steerer operates in a similar fashion to the standard Rack and Pinion Steerer with the feel of a tiller and very responsive to the touch. It is available in two models: for straight in-line installations on vertical or nearly verticle rudders and for offset installations, requiring a shaft universal and an adjustable bearing for angled rudders. They require only a small slot in the stern for the operating rod. This slot can be easily sealed with a homemade boot similar to one for a mast step. Fig.814 Double Ender Rack and Pinion Steerer consists of a Rack and Pinion Steerer with lever, 2 clevis units, connecting rod and-a rudder lever unit. The geared quadrant is designed to mount on a 1-112"13.8cm dummy rudderpost. The ''A" dimension is 21 ", theUC" dimension is 16" or either is available to suit. Weight 46 lbs.120.7k. Fig. 815 Double Ender Rack and Pinion Steerer complete with shaft universal and 1" self-aligning bearing. This steerer is the same basic model as the Fig 814, but it incorporates a shaft universal and bearina. This Divots at a ~ o i n14-112"forward t of the dummv rudderpost. The self'aligning bearing is then placed forward of t i e universal as close to the wheel as possible to keep the wheel with a solid feel. The universal can change the shaft angle up to 30 degrees. Weight 49 lbs.122.lk. Fig. 613 Outboard Lever Quadrant Assembly consists of a 12"/30.5cm quadrant (Fig. 668) 2 clevis units, connecting rod, and rudder lever unit. This assembly is designed for double ended boats which want to use a roller chain type steerer (ie Pedestal, Bulkhead Steerer, or Geared Reduction Steerer) in conjunctionwith an outboard rudder quadrant. The steering cables can be l e d j #) aft from your choice of steerers using an appropriate combination of sheaves or ~ u l l - ~ conduit. ull The quadrant is desianed to mount on a 1 112" 13.8cm dummy rudderpost. For ordering &d installation instructions, refer to the double ended rack & pinion steerer below. Assembly weight 39.8 lbs117.9K

rudderpost.

FIG 814

-Auto-Pilots

FIG 344 with universal
-?

Ail Edson Rack and Pinion Steerers can have auto pilot sprockets a t tached iust forward of the steerer frame. b n the aft mounted rack models there is a 2 inch shaft extension aft that an auto pilot can be attached to also.

-A"= 1 5 " / 3 7 . 5 ~ ~ OR TO

&

--p

11-7/8"130.1crn
&+G,lR,,

9-5/8"/ 24 crn

Fig 343 Aft Mount Rack and Pinion Steerer size 1 is for use on aft racked rudderposts 1" to 2-118" diameter with a maximum key of 318" in on the aft side of the rudderpost. If the bore is not specified the rack will be furnished with a718" pilot hole. The "A" Dimension on the wheel shaft is standard at 15 inches or is available to suit. Steerer weight: 30 lbs.113.5 k )Fig 344 Aft Mount Rack and Pinion Steerer is for use on boats with

-

-'.

Q vertical rudderposts or severly aft raked rudderposts. This steerer comes with ashaft universal and two 1"self aligning bearings.This steerer allows the adjustment of the angle of the steering wheel within a 30" arc.

adiustable

I

A = 23" 57.5 cm or to suit

INSTALLATION INFORMATION
First of all it is important to establish and install the reinforced platform that the dummy rudderpost is going to be bolted to. Bear in mind that this surface must be of sufficient strength as it must absorb all of the steering loads. This platform must be 90" to the rudder on a plane where you wish to install the rudder lever. Also note that the geared rack and pinion quadrant requires a minimum of 10" on each side of the dummy rudderpost to swing in. This dimension will help in establishing the "C" dimensions. Temporarily mount the dummy rudderpost and assemble the rack and pinion gear and housing. Assemble the clevis, the connecting rod, and the rudder lever unit. With 'C' clamps, attach the rudder lever unit to the rudder. Now operate the steerer noting the rudder travel from side to side. The location of the lever on the rudder, either fore or aft or possibly even shimmed to starboard, determines equal travel from side to side. Take time with the positioning of this lever and be precise. When you are satisfied, secure all parts and install stops, such as wooden blocks on each side of steerer to limit its travel to the desired arc. Provisions for an emergency tiller should now be made if you do not already have one.

CABLE SYSTEM FOR DOUBLE ENDER

The New Fig 345 Aft Mount Rack and Pinion Steerers are for use on boats with rudderposts raking forward. Although similar to Fig. 344 in function, the exact location of the shaft universal allows adjustment of the steering wheel from a position parallel to the plane of the rudderpost to a more comfortable vertical or aft rake position. MAINTENANCE Maintenance of Rack & Pinion Steerers is minimal and when performed at least oncea month, will provide years of trouble-free performance. Oil shaft bearingsand hinge joints on Hinged Racks with #30 Motor Oil. Usealight application of Fig 827Teflon Lubricant on the gear teeth and contact point of the adjusting arm. Universal joints should be packed in grease and booted. Daily inspection is recommended. One of the most popular accessories for wheel steerers, this brake was designed especially for Rack and Pinion and Worm Steerers. Its dampening action is especially handy on long runs or when operating under power. Can also be used to hold the boat on course under most conditions. As a safety feature the brake can be overridden by the helmsman. The Brake mounts on the wheel shaft against the inside forward wall of the wheel box with the adjusting knob coming out either side of the box. Brakes are constructed of

~xtenderj(

coupling

FIG 675

-..,.

The Fig 345 Aft Mounted Rack a Pinion Steerer is ideal for installations where the Ruddarpost is either raked forward or aft.

SHAFT MOUNT BRAKE FIG 783

' '

I-

, I

U

FIG 345

aluminum and bronze with long lasting brake lining and supplied with brake shaft and shiny black brake handle. Brakeshaft lengths available are 8"120.5cm, 12"/30.6cm and 14"/36cm. Special lengths are available upon request. When ordering be sure to specify Fig No., size, Brake Shaft length and Shaft diameter. Wt. 2 Ibs.l.91 k.
Size 1 For 1' diameter wheel shaft to fit ail Rackand Pmon Size 1-118 For 1.118' diameter wheel shafts to fit Super Simplex Size 00

/ /

PEDESTAL FIG 689BRAKE, FORSEE

FIG 613 Outboard Lever Quadrant

minimum

I

ORDERING INFORMATION
.- .

Quadrant

5"112 cm (min.)

When ordering a Rack and Pinion Steerer for a double ender, please specify the figure number, 'A' & 'C'dimensions, type o boat, and a description of the location of the dummy rudderposj3, with dimensions. Unless otherwise specified, the geared quadrant '" will be bored with a 1-112" dummy rudderpost. Refer to ordering information for Rack and Pinion Steerers for more detailed considerations when determining the 'A' dimension. Individual parts are available, see Fig 616, 808 and 836, Tiller Arms. If you require further assistance, please do not hesitate to contact the Edson factory for more information.

-

FOR PARTS RE-ORDERING

,,,N

8

For complete waranty information

- see inside front cover.

9

s4t.n
RACK AND PINIONIWORM STEERER ACCESSORIES
317 COMPASS PEDESTAL
Complete with ig compass 856
Adaptor

WORM STEERERS

p ; . '

5"112.7cm C\ompass (Optional)

6"/15.2cm
Compass (Optional)

for 4 ", 5" or 6" Compass.
Excellent compass location for boats with Worm, Rack and Pinion steerers or even a tiller. Aluminum with baked on white finish. Forcompasses to fit, see Fig 658. Pedestal accessories such as guards, tables, etc. can all be used with compass pedestals. Also available with Fig 714 Narrow Base or Fia 690 Milled Base andlor s p e c i i heights. See the price page for additional details. For mounting bolts see

1-

Edson offers three basic models of Worm Steerers: Simplex, Robinson, and Meteor. The Simplex is the most popular model c % n d is manufactured in three sizes for boats up to about 50 feeVl5m in length. There are two basic designs of the Simplex; one with the worm mechanism forward of the rudderpost, the other with the mechanism aft of the rudderpost. The actual choice depends on the space available for the gear, the operating features are identical.
A photographic comparison of the Figure 370 ize 00 Simplex and the Fig 380 Size 2 Robinson.

FIG. 629 SELF-ALIGNING BEARING Self-Aligning all bronze bearings similar to those furnished with all Worm Steerers. To be used in conjunction with Fig. 679 Shaft Universal for changing wheel shaft angles on Rack and Pinion and Worm Steerers. Ideal for marine use for all rotating shafts where alignment is a problem. Not recommended for pro~ellpr or other high speed shafts.
,

-

WORM STEERER SELECTION CHART
MODEL 629

-

2a18>

8

MODEL 629

C
Steerer Size Simplex 00 Simplex 0

Three Edson Worm Steerers for boats 45 to 95 feet overall length. Great care must be taken to select the proper gear by size and model and it is recommended that plans be sent to Edson for review by Edson Engineering The Meteor is a steerer that has an equal amount of worm forward of the rudder post as well as aft of the post. The Robinson is available with either both worms forward of the rudder oost or all aft of the rudder post. Both Meteors and Robinsons have an extension aft for attachment of an Auto-Pilot.
Approx. Steerer Weight 33115k

to Hard-Over in 90 degrees

Turns Hard.Over

3.25
3.75

Overall Length of Boat 35

Bores I " Pilot 1%" max.

Rudder Post

, P a
FIG. 629 A
Available sizes from 718" t o 1-318" Dia.

' Robinson2 e

-

6.0

65-95

23/2

" Pilot 3 1 1 %" max. 2701122k 3-3 9.5

Wheel Shaft Size to fit Wheel Bore 1", 2-318" Hub Length 114" key. Special Wheel Shaf! Diameters Ava~lable.

FIG. 629 B
Available sizes from 1-112" t o 2" Dia.

FIG 795 FACEPLATES
Fits Shails Malerial Plale Dimensions Inch mm Inch mm 1 1 118 25.4x28.5 Stainless SIeei I13l8x3-5/16 34.9x84.1 1375 1-318 34.9 Chrome Bronze 2-112 x 4-314 63.5X120.6 15 1-112 38.1 Chrome Bronze 2-112x 4-314 6 3 . 5 120.6 ~

Fig Size

These faceplates are ideal for dressing up Worm and Rack and Pinion installations.

FIG 679 SHAFT UNIVERSAL For use with all Worm Steerers and Rack and Pinion Steerers. Allows the wheel to be tilted to the most comfortable angle when the rudder is excessively raked. For its use see Rack and Pinion and Worm Steerer plannivg sections. Note that a F i g 629 bearing must always be used with the universal. The universal is constructed of steel with a breaking load of 15,000 inch pounds. Universals can change shaft angles up to 30". For maximum life, they should be packed in grease and booted. Weight 3 lbs/1.36k

FIG 782 RUDDERPOST EXTENSION A shaft extension for Rack and Pinion and Worm Steerers where the existing rudderpost is too low in thecockpit. TheseExtenders are designed for use with Fig 675 Couplings. Rudderpost Extenders are supplied with keyways at both ends. Type I Extenders are a uniform diameter along their entire length, and Type I1 Rudderpost Extenders are supplied with 2 diameters as shown. When ordering, specify type and provide a sketch showing all dimensions in the drawing. See Price Sheet.

A

Type II

FIG 675 BRONZE SHAFT COUPLINGS Especially handy for connecting in line shafts of the same diameter. Also used with rudderpost extenders on Worm Steerers and Rack and Pinion installations where the existing rudderpost is too low.

t- ~z-- -l

for all available sizes see p r i s pages

Worm steerer installations must be well designed and well thought out from all standpoints. The basic system is mounted at 90" to the rudderpost and is rigid at this point. The Self-Aligning Bearing supplied with the gear must be well bolted down to a timber or strong moldment on a fiberglass design. It is important to design in the basic features that make for a successful installation. It is recommended that the top of the wheel, the actual part you hold onto, be 31 "/79cm to 33"182cm up from the cockpit floor. This will allow standing beside the wheel without reaching down to the wheel, also sitting in back of the wheel or alongside it and have the wheel at a convenient height. Essentially a Worm Steerer is a non-reversing system with little to no "feel" and is most commonly used on a longkeeled cruising design. The steerer design features more turns pf the wheel from hard over to hard over than is normally designed into a wire type of pedestal systems. The Worm Steerers would then not be recommended for a short-keeled fast turning boat or one that does not track as well as the long-keeled boats. The non-reversing feature will hold the wheel in place on most boats most of the time. It will give or turn if the boat is hit by a large wave or the boat has an excessive helm due to basic design, force of the wind, or balance of the sails. The gears are strong and relatively heavy as they must stand all of the strain of the rudder when transmitted to the gear. The shaft extension or the wheel shaft itself can be easily * 9*'~pated to an Auto-Pilot by the. addition of the necessary (Jilot sprocket. The choice of the location is one that will allow the sprocket chain to be led at right angles to the worm shaft directly to the Auto-Pilot motor box. When ordering, advise Edson of Rudderpost bore diameter, Keyway size and Keyway position - these will be machined by Edson. If a special "A" length is required, be sure to include it.

FIG 390 Edson Meteor Steerer With Worm Fore and Aft of Rudderpost. Wt. 128 lbs.158.5 k A = 15-3/4"139.4cm

363377 311

$

FIG 380 Edson Robinson Worm Aft Steerer Wt. 128 lbs.158.5k

FIG 382 Edson Robinson Worm Forward Steerer Wt. 128 lbs.158.5k

SIZE 2

SlMPLM WORM STEERERS
For excessively raked rudderposts, Edson offers a Simplex with the Shaft Universal Assembly on the wheel shaft and an exfra Self-Aligning Bearing for the needed forward wheel shaft support. This combination can reducethe wheel angle by a maximum of 30" up or down. That is if the rudderpost is at 45" to the waterline the wheel can be angled at only 15". Edson feels the maximum angleof the wheel should be no more than 20" . Likewise on near vertical rudderposts the same universallbearing setup can be used to give the wheel some aft rake. This angle is important as it will give the helmsman room for his knees while the top of the wheel is closer to his arms If in doubt as to steerer size or if the boat is very heavy,go larger. Do Not compromise the final size. For those boats where the rudderpost ends at the cockpit floor level, Edson can furnish the Fig 675 Coupling and aFig 782 Rudderpost Extender of the correct size and length. Measure carefully and if in doubt add to the length of an extension, it can always becut off, andlor send Edson full details of what you are trvina to do, we can possibly add some ideas to make the install$ion better or more versatile. WORM FORWARD OF THE RUDDERPOST: - - This model places all of the mechanism forward of the rudderpost. The "B" dimension is the minimum length of the steerers. Thei'A" dimension isvariabledown to "B"+ 1/2"/1.27cm or it can be made longerat additional cost. As a guide the exposed shaft 'that is between the steerer box and the aft side of the wheel should be about 6 inches long for proper leg clearance.Special wheel bores can be obtained at a small additional cost. Advise Edson of the bore, bore length, and keyway size that fit your requirements. Note the "C"dimension covers a 1"/2.54cm diametershaft with '/4"/.635cm keyway. Thisstubshaft is excellent for an Auto-Pilot Drive S~rocket.Note the Self-Alianina bearina It can should be as close to the wheel as is reasonably be placed either forward or aft of the shaft coupling. The bearing being closeto thewheel reducesany "Rubberiness" of the wheel.

SIMPLEX WORM STEERERS

SIMPLEX STEERER
Advise Edson of the rudderpost bore, keyway size and its position, ie., forward of the rudderpost, 30" to starboard, or whatever; Edson can furnish it to fit. One of the most important points is to make this a very accurate rl;ldderpost dimension. or problems at Edson will bore to fit and you will have nb
,;, + +, ; , ,
1 1 1 1 3 pUIII1.

All Edson wheels can be used on all Edson steering gears. If in doubt as to the wheel size best suited for your boat it recommended that you cut a wheel from cardboard and actually try it on the boat. Check for clearance, ability to move around the wheel, etc. If not satisfied, cut anotherwheel size until you get what is best.

ia)'

~3)*

THREE TYPICAL WORM STEERER INSTALLATIONS The box that incloses the gear should be watertight yet easiWORM AFT OF THE RUDDERPOST. ly removable.Thereareseveral sketchesand photographsthat For those boats with room aft of the rudderpost for the illustrate Some of the designs that have been S U C C ~ S S ~ mechanism of the steerer. The most common installation is employed. Being built up they do offer an excellent seat and the Fig. 370 which is a straight forward gear with the wheel at will also give better visibility over the house. A simple hinged the same angle as the rudderpost. The different styles of steerfolding seat back Can be built, cushions added and the helmsing boxeslseats should be noted in the drawings and man will have cruising luxury. In all cases keep the seat low photographs. The more comfortable you make the handling of enough so the helmsman's feet are firmly planted on the cockthe boat the more pleasure it gives, and even more important pit floor or other brace. If they are left dangling the circulation the longer a helmsman can steer without becoming tired. will be cut-off and the position becomes uncomfortable. i ~ the . optional ~ i g . Note on the drawing above the ~ 370with MAINTENANCE 679 Coupling and the Fig. 782 RudderpostExtension. These parts ?whichare necessary when the steering gear is attached to the For maintenance of all Edson Steering Systems we recom"-top of the original rudderpost, would then place the top of the mend using #30 Oil on all Pivot Points and Water Pump Grease on the worm itself and on the grease fitting on the centerof the wheel below the 32"/81cm to 33"/84cm recommended height. As noted under the above Figure numbers in the catalog these steerer. Check the flange alignment by loosening the four bolts parts are available in many sizes and lengths and can be made on the top of the steerer and check as on a propellor shaft couto order to fit the boat's special requirements. pling. The 90"angle is extremely important and this point will cause binding if not correctly aligned. The Worm Steerers are all simple in design and many have seen hard usage for 15 to 20 years. They are constructed of steel time proven materials. The wheel shafts are ~tainless and chrome, the worm shaft steel, the arms and bearings are cast bronze. The traversing nut is bronze with replaceable "Babbitt" Threads. The Rudderpost Flanges are cast iron. The Simplex Steerers have a single - balanced thread with bronze , thrust washers. L ,'
i _

U ~ ~ ~

DIMENSIONS FIG. 372 - 373 (INCHES & CM)

I

1 Size

(

A(3731

1

A (3721 1

81373)

1

813721

1

C

1

0

I

E

I

F

I

G

I

H

I

I

I

DIMENSIONS FIG. 370

- 371

(INCHES & CM)

Fig 372 Simplex Worm SteererSize 00 0 1 Worm Forward of Rudderpost Fig 37288 Stainless Steel Wheel Shaft (Size 1 Chrome Wheel Shaft) *See note on price page for special shaft lengths.

Size 00 0 1 Fig 373 Simplex Worm SteererWorm Forward of'Rudderpost complete with Universal and Extra Bearing Fig 37355 Stainless Steel Wheel Shaft (Size I Chrome Wheel Shaft) *See note on price page for special shaft length.

/

Fig 370 Simplex Worm SteererSize00 0 1 Worm Aft of Rudderpost Fig 370SS Stainless Steel Wheel Shaft (Size 1 Chrome Wheel Shaft) *See note on price page for special shaft lengths.

Fig 371 Simplex Worm SteererSize 00 0 1 Worm Aft of The Rudderpost With Universal and Extra Bearing Fig 371SS Stainless Steel Wheel Shaft (Size 1 Chrome Wheel Shaft) *See note on price page for special shaft length.

12

13

dst~n

BULKHEAD SPROCKET STEERERS
Heavy Duty Steerer

STEERERS

Edson Bulkhead Steerers are available in many sizes, features, and capacities, for small power craft to large schooners and tugs. These steerers are perfect for consoles, cockpit dividers, or custom pedestals. Bulkhead steerers should be selected for the size and type boat, and the conditions of use. For selection, we compare all combinations shown in the selection chart to the length tiller required. Even the smallest bulkhead steerer has the equivalent mechanical advantage of a 6 ft.ll.8m long tiller. Lighter boats or racing boats generally prefer a fast acting system with fewer turns of the wheel, lock to lock. Power boats and heavier cruising boats prefer slower acting, more powerful systems. With increased turns lock to lock, more power is obtained and chances of over-steering at higher speeds are reduced. The faster, larger, or more powerful the boat the greater the number of turns is required. If more steering power is desired and the quadrant space is limited, the Fig 360 Geared Reduction Steerer is recommended.

This steerer was developed for those wanting the finest in steering control. Stainless steel needle bearings, stainless steel liners, and a stainless steel shaft makes this unit as friction free as possible. Each Fig 410 has a Zn15cm shaft extension for connecting an auto-pilot, or second steering station. Every Fig 410 is jig drilled to accept a Fig 689L Brake which can be installed when ordered with the steerer or installed by the owner at a future date. The Fig 410 was designed with an inverted aluminum "V" frame allowing the chain to diverge at a wide anale. This feature reduces the total number of sheaves required, thus max. chain increasing "feel", and reducing installation costs. This steerer can be spread used in a custom pedestal, bridge deck, power boat console or bulkhead. In adivided cockpit on racing sailboats the Fig 410 can be placed FIG. 410 NEEDLE in a bridge deck with the traveler on top. This is ideal for boats with no BEARING STEERERroom under the well. It also provides an excellent location for a life raft. Shown with 1! Fig 410 complete with Fig 689L Brake weighs only 10 lbs.14.5k. This Optional Brake steerer accepts standard Edson wheels, with 1"12.5cm x 2-318"16cm long bores. It comes complete with a black nylon wheel nut, key, and Fig. 689L stainless steel faceplate, weight 8 lbs.13.6k.

FIG 410 NEEDLE BEARING STEERER

Heavy Duty Steerer FIG. 339 This steerer is constructed of extra heavy bronze and brass for dependable steering in the most severe conditions. It's features include an oversized frame for even stress over a large area, oil impregnated bronze bearings, integral chain guard, and 2 inch shaft extension for easy auto pilot installations. All steerers are pre-drilled to easily install 'FIG. 742 brakes. Steerers are supplied with black nylon wheel nut, stainless steel wheel key, and stainless steel rectangular faceplate. Wt. 13 lbsl5.8 k
HEAVY DUTY STEERER FIG 339C Size 3 for 3hn119.05mm Roller Chain with Chrome Faceplate and Shaft Size 4 for 1"125.0mm Roller Chain

3/8"19.5rnm

OIA. MOUNTING HOLES

.

-

.
h

--

CHAIN and SPROCKET DATA (for Fig. 339, Sizes 3 & 4) Steerer Chain Sprocket Chain Travel Per No. of Size Pitch Pitch Dia. Turn of Whiel Teeth 3 1 314" 19mm 1 3.1" 78mm ( 9.8" 24.8cm 1 13 4 1 l-" 25mm 13.2" 81mm 1 10" 25.4cm 1 10

FIGURE 338,339,340AND 410 BULKHEAD STEERER SELECTION CHART
" 3

O'

FIG 338 CRUISER STEERER
An excellent general purpose steerer for both power boats and sailing craft. This steerer has a rugged die cast bronze frame, and stainless steel shaft. The oil impregnated bronze bearings give years of trouble free performance with minimum maintenance. Each Fig 338 has a 2"1 5cm shaft extension for connecting an auto-pilot or a second steering station. All steerers are pre-drilled at the factory to accept optional Fig 742 Wrap Around Friction Brake. It comes complete with black nylon wheel nut, key, and a stainless steel faceplate, weight 6 lbs.12.7k. .2-9/16/66cm. ;2"/5.lcm-+ IOIA. MOUNTING HOLES
;1/4"16.35mrn

~ i z e 2 - 1 for 1 5/8"115.8mm #50 Roller Chain with I 11 Tooth Sprocket Size 3-10 for 3/4"119.05mm #60 Roller Chain with 10 Tooth Sprocket Size 3-13 for 314"119.05mm #60 Roller Chain with 13 Tooth Sprocket

3

,

i

718"'
l

l

i

m

FAcEpLATE

I

/

An alternative to the Fig 338 Cruiser Steerer, the 340 was designed to mount flush against the steerer console for those boats with no room forward of the bulkhead. This steerer is the same general purpose steerer as the Fig 338, yet the steerer frame is mounted in reverse on the shaft. All steerers are pre-drilled to accept the optional Fig 742 Wrap Around Friction Brake. Weight: 6 lbs.12.7k. Fig 340 Flush Mount Bulkhead Steerer with stainless steel shaft and faceplate Size 1-14 for 112"112.77mm for#40 Roller Chain Size 2-11 for 518"115.8mm #50 Roller Chain

FIG 340 FLUSH MOUNT BULKHEAD STEERER

I
I

Length Length of Overall Waterline (L.o.A.) (L.w.L.) Ft. Ft. up to 26' 17 -23 upt026'' 17-25 24-30 19-25 26 - 29 31 2 36 30 1 35 37 - 41 Heavy Displacement 42-51 34-451 Heavy Displacement 45 - 55

Recommended Steerer & Size

1

Required Turns of Length of Quadrant or Drive Wheel Wheel, Lock Roller Wheel Size Size to Lock Chain Ins. Ins. 70 90 Ft. rn 1.3 1-112 .46 6.5 16-20 1.0 1.4 1.8 1-112 .46 8 18-20 338&340Sz.1 18-24 1.4 1.8 1-112 .46 338&340S~.2 8 2.3 2 .6 24 - 28 1.7 338,340 8t410Sz.2 10 2.8 2 .61 26 - 30 2.1 338,340&41 OSz.2 12 2.4 3.0 2-112 .77 338,340&410Sz.2 114 26 - 30 410Sz.2 116 ( 3 2 - 3 6 12.8 13.5 12-112 .77 118 1 3 2 - 3 6 3.1 14.0 1 3

1

/

1

/

1

1
(

Output Ft.Lbs. 181 264 264 368 503 596 720

Equivalent Tiller Length Ft. m 4-1121.37 6 1.84 6 1.84 9 2.72 12 3.62 4.52 15 118 5.23 1 6.1

1

1

1

RecomRecornmended mended Wire Rope Idler & Sheave Size Size Ins. cm Ins. mm. 4 10.2 31164.76 4 10.2 3/16 4.76 4 10.2 31164.76 4 10.2 3/16 4.76 4 or 6 3/16 or 114 3/16 or 114 4 or 6 6 15.3 1114 6.35 6 15.3 114 6.35

1

1

1
1

52 -61

62-80

56-70

339 SZ. 3 410 Sz. 3 or 339 sz. 3 410Sz.3 or

18 20 20 24

32 - 36 36 - 42 36 - 42 36 - 42

2.2 3.0 2.5 3.7

2.8 4.0 3.1 4.9

3 3 3 3-112

.91 .91 .91 1.06

820 1080 1080 1540

20 25 25 38

6.1 9.6 7.6 11.5

6 15.3 6 or 8 15.3 6 or 8 20.5 8 20.5 20.5

114 114 114 114 1114

6.35 6.35 6.35 6.35 6.35

A C C E P T S WHEELS WITH 1"/25.40mm x

339 Sz. 4 124 1 3 6 - 4 2 12.9 13.8 13-112 1.06 11540 ( 3 8 11.5 1 8 NOTE: This chan is to be used a s a guide with specific recommendations to be provided by your Naval Architect.

/

WRAP AROUND FRICTION BRAKES FOR BULKHWD STEERERS
FLUSH MOUNT
The most popular accessory for all Bulkhead Steerers. Brakes are designed to dampen the action of the wheel, a feature especially handy on long runs orwhen operating under power. Can also be used to hold the boat on course under most conditions, while the helmsman trims that sheet or goes below. As a safety feature, the brake can always be overridden by the helmsman. All mounting holes on the steerers are pre-drilled at the factory, allowing simple installation in about 15 minutes. Brakes are constructed of bronze --with long lasting brake linings, and supplied with stainless steel brake shaft and hiny black nylon brake handle. Brake shafts are available in 8"/20.3cm and 14"135.5 cm lengths. When ordering specify Fig. Number and brake shaft length. Unless otherwise specified brake shafts will be supplied 8" long. Brake shafts can be easily shortened by cutting with a hacksaw and drilling one hole.-Longer Brake Shaft lengths available on special order. Wt. 2 Ibs.l.9k 4. Fig742 S~ze 8 or 14 fits Flg 338,339,340, and 360 except S~ze Note: for Edson Pedestals. See Fig 689L for Pedestal Brake. Fig 689L Slze 8 or 14 ftts Fig 410 Slzes 2 and 3.

BULKHEAD STEERER CHAIN SPROCKET DATA

1-

&)

Fig 338 Cruiser Steerer with stainless steel shaft and faceplate Size 1-14 for 1/2"/12.77mm #40 Roller Chain Size 2-11 fo! 518"115.8mm #50 Roller Chain Bronze faceplate is available upon request.

I

l4

For complete waranty information

- see inside f r o n t cover.

dsd~n GEARED REDUCTION SPROCKET STEERER
The Edson Geared Reduction Steerer is a powerful and sensitive steerer designed for pleasure and commercial boats thirtyfive feet and over. The reduction steerer will deliver approximately fifty percent more power than the bulkhead steerer with quadrants of the same size, and is an excellent steerer for powercraft, motorsailers, and heavy auxiliaries with limited space around the rudderpost. Geared reduction steerers are constructed of extra heavy nonmagnetic stainless steel, bronze, and brass. Additional features include oil impregnated bronze bearings, an oversized frame for even load distribution, and two inch shaft extension for easy auto-pilot installations. All steerers are pre-drilled to easily install Fig 742 Brakes (size 2 and 3). Steerers are supplied with black nylon wheel nuts, and stainless steel wheel key.

FIG. 806

w.""

'I

I

OFFSHORE RACING/CRUISING SYSTEM
FIG. 807 OFFSHORE IDLER ASSEMBLY

-

Edson's Offshore RacinglCruising Idlers are available in both bronze and aluminum. The bronze is a heavy duty steering package for the serious offshore cruiser andlor racer and is available in a size 6 and 8 inch. The aluminum idler is ultra-light - the latest thing forthe ultralight offshore sled. The idler is light, very strong, and super sensitive for the ultimate "feel" of the helm and is available with 6" or 8" sheaves and stainless steel pins. In the 8" size needle bearings are standard. The Fig. 807 Offshore Swivel ldler assembly consists of extra strong sheave housings assembled to a large idler plate using stainless steel grommets. After aligning the sheaves additional bolts are installed, making the assembly very strong. These housings will accept 6" or 8" sheaves. The idler plate is fastened using the 1/2" pedestal bolts, with extra holes available for through bolting. The larger idler plate sandwiches the cockpit floor, helps reinforcing, and distributes the load. The Fig 863 Offshore RacinglCruising Crossed Wire ldler is used for those boats having the quadrant aft of the rudderpost. This idler allows crossing the wires inside the pedestal to give the proper steering direction. The sheaves are fully adjustable between 20" forward to 160" aft, and after aligning the sheaves additional bolts are installed. The Fig 863 ldler is otherwise the same design as the standard Fig 807. c FIG 807 AND 863 OFFSHORE IDLERS Plate Max. Wire Sheave Weight Material Depth Diameter Dimensions Size
Bronze 6"/15.2cm 6"/15.2cm

SIZE 2 & 3

ASSEMBLY

to 318 to 3/8

EDSON DESIGN SERVICE FIG. 636 SINGLE HUB SPROCKETS
FIG. 360 GEARED REDUCTION STEERER Sizes 2 & 3 with Stainless Steel Faceplate and Wheel Shaft, Slze 4with chromed Faceplate and Shaft
Stearer Gear Rtch Atch Par Turn of Chaln Weight Slze Ratla Inches Number Olameter olWheel Teeth Ibs./Kg. 2 2.1 518"/15 87mm 50 3.0 15 24110.9 4 7"
L P - a

Non-Magnetic Brass & Bronze Sprockets with hubs on one side. Sprockets accept American Standard roller chains (Edson Fig 6305). When ordering specify sprocket size number.

LJ'
PI?

Ideas like this use all stock Edson parts, available right off-the-shelf. Edson's FREE Design Service will put together the best combination of components for steering your custom yacht. We can design a system for yachts up to 100 feet specifically for the typeof sailing you in' - )tend to do. PLAN AHEAD, contact us during the design and planning e ' s t a oes.
7

I-

Aluminum Bronze

I

8"120.3cm 8"/20.3cm

1

to112

/

Aluminum

to 1/2

13 x 20 33cm x 50.8cm 13 x 20 33cm 1 50.8cm 13 x 20 33cm x 50.8cm 13 x 20 33cm x 50,8cm

7"/17.8cm 7"/17.8cm

33 1bs/15 kg 12.lbs1 5 kg 40 Ibs/18 kg 14 1bs16.3 kg

1
9"/22.8cm 9"122.8cm

The Fig 806 and 848 Dual Ratio Quadrants are ideal for conditions that sometimes call for different steering ratios. Racers may want quicker response in light air, more leverage in heavy going, or an easier helm for leisurely cruising. These quadrants allow you to shift your steering cables from a 10" to an 8" or a 12" to a 14" radius in 15 to 30 minutes time, giving you a difference of about 10% in leverage. A natural for new untried racing machines with big rudders - or adapting other larger designs to the skipper's or natures requirements for the day. The second groove is also ideal for a permanent auto-pilot arrangement. Available in aluminum or bronze, please specify material when ordering. FIG 806 DUAL RATIO QUADRANT
Quadrant Size Radius Hub Height inches cm inches cm 8-10 20.4-25.4 2M 6.4 12-14 30.5-35.6 2% 6.4

NUMBER OF TURNS H.O. TO H.O.

I Fig. 360 Stwrars I 0 i d r a n t ~ l z e l n s . l 10 1 11 1 12 1 14 1 16 1 18 1 20 1 Rudder Travel 1 9 0 ~ 1 7 0 ~ 9 0 ~ 1 7 0 ~ ( 9 09001 ~ 1 770~l/90~70~190'(70~1 0~1 90170j
Same as above except with a hub on both sides of the sprocket teeth. When ordering specify sprocket size number.
Chain Required For Sizes 2.3, & 4

I

I

24 70

FIG. 855 DOUBLE HUB SPROCKETS

The Fig 410 Bulkhead Steerer combined with a Fig. 628 chain idler makes a very functional bridgedeck arrangement, using no floor space. You can stand right up to it, and it eliminates the need for extra scuppers for a separate compartment. The Edson Fig. 752 Wide Guard lends support and rigidity. In larger cockpits a liferaft can be stored under the bridge deck.

= '
C h r n Rollar Outside Oia. Ins. cm Chain S~ze Inchar Bolt Sizs Ins. mm Ins.

I

I

Pilot Bore Diameter inches cm 1 15116 4.9 1 15116 4.9

I

Max.

Bore Dia.
inches 3% 3M cm 8.9 8.9

I

Max. Size Keyway inches mmM 12.7 l h 12.7

FIG. 848 HEAVY HUB DUAL RATIO QUADRANT
8-10 120.4-25.4 12-14 130.5-35.6

1
1

2% 2'h

1

1

6.4 6.4

1

1

3 318 3 318

1

1

8.8 8.8

1

1

5 5

1 12.7 1
1
12.7

1

l h M

1

1

12.7 12.7

INSTALLATION OF BULKHEAD STEERERS
Steerers must always be bolted to a strong bulkhead or wheel box. Tighten all bolts equally to avoid wracking the frame. The hole for the shaft should have at least "16.35cm of clearance. Wood swells an@": shrinks and many times will bind the steerer. This is often , & the a l ) place that is checked. Use the recommended wire and chain length leading the wire through the sheaves to the quadrant. Be sure to carefully align and securely bolt shehves. Wires then attach to the quadrant or Drive Wheel. Tighten only enough to remove backlash at the steerer: Too much tension will load the system and cause it to bind. Daily inspection is recommended. Oil the chain and sheaves 3-4 times a season and replace wires after 5 years. Keep the old ones as spares.

ROLLER CHAIN IDLER

3,

Edson Roller Chain Idlers are especially designed for leading roller chain from steering or automatic pilot installations around bulkheads and other obstructions. Machined chain rollers and housings are ' f sronze with removable pins to simplify installing or replacing chain. {( bearings bronze for minimum maintenance. - are oil impre~nated . \ & V .

3 1 1
1

Size No.

Bae Size

cm

Toul Hei@t Ins. cm

Wsi$st Each Lbr k

DOUBLE IDLER

f l f m

2-112

6.35 112" 140

38

95

4x9

lflx23

2-112 6.35 5112 2.5

dsc~n SELECTING A PEDESTAL STEERING SYSTEM
Edson now offers many types of pedestal steering systems specifically designed for maximum performance and Edson . reliability, as well as ease of installation. Each system is pre-drilledto accept any of the convenient add-on accessories at any time. Carefully review each type shown in the following pages, as well as the Edson "data-Sheet" for your particular boat. Edson has over 1,200 installation drawings which we call S-Data-Sheets. If you own a stock boat, feel free to request a Data-Sheet on that boat, or if you are building or purchasing acustom boat send us in aconstruction drawing or good sketch and we will gladly send a complete proposal and Data-Sheet representing a similar installation.

I

STEERING SYSTEMS
"

typical installation may vary in wheel size, sheave size, chain : d l e n g t h , and quadrant size depending on the size and displacement of the boat, and the type of sailing being done. For cruising and offshore work, a larger quadrant with more power output, and more turns of the wheel hard over to hard over is preferable. For racing, a smaller quadrant with fewer number of turns and a larger wheel will provide faster action especially useful for downwind sailing. For recommended

-)The

SIZING THE PEDSTAL STEERING SYSTEM

d s s a n

sizes, see the table below. Edson will also supply upon request, Data Sheets and specific recommendations covering the best system for your boat. For boats being able to use more than one system, recommendations will be given in order of preference. For specific information for converting or planning your boat, send us your construction drawings andlor sales literature along with the type of steering system you wish to install.

The chart below is composed of information gathered from our many years of leadership in marine steering. Due to the many variations of yacht design in areas of hull shape, engine horsepower and sail configuration, final recommendations must be approved by your Naval Architect.
Length Overall (L.o.A.) U p t o 26' Length of Quadrant Steering waterline or Drive Wheel (L.w.L.) Wheel Size Size Ins. Ins. Pededal compass Size cm *Turns of Wheel, Lock to ~~~k 700 Length Of Roller Chain ~ t . cm Equivalent Tiller Length ~ t . m Required idler & Sheave Size Ins. cm Required Wire Rope Size Ins. m m

(40+ input) 181 264 -. 368 503 596 720 820 1080 1540

Output Ft. Lbs-

17-23 17-25 26-29
30-34

6.5 8 10

18-22 18-22 24-28 26-30 26-30 32-36 32-36 36-42 36-42

334-4"

10.2

1.0 1.4 1.7 2.1 2.4 2.8 3.1 3.5 4.2

1.3 1.8 2.3 2.8 3.0 3.5 4.0 4.5 5.4

1% 1% 2 2 2% 2% 3 3 3%

.46 .46 .61 .61 .76 .76 .91 .91 1.06

4% 6 9 12 15 18 20 25 38

1.37 18 2.7 3.6 4.6 5.5 6. 7.3 11.5

4 4 4

10.2 10.3 - 10.2

3/16 4.76 31164.76 -. 3/16 4.76 3/16 or 114 3116Tr 114 114 6.35 114 6.35 114 6.35 114 6.35

,

UP to 35"

32 - 36
37 -41

334-4" 10.2 335-5" 12.8 335-5" 12.8 335-5" 400-6 400-6" 400-6" 400-6" 12.8 15.4 15.4 15.4 15.4

Heavy Displacement Heavy Displacement

1

l2

4or6

1 7 ;

42 - 51

34-45

BASIC QUADRANT -SYSTEM

SHEAVUBRACKET SYSTEM

Heavy Displacement

Basic ~ u a d r a nSystem t is best used where the rudder post has considerable rake forward or aft, or where tanks, cockpit drains, exhaust lines or other obstuctions require routing of the wire rope through two or more sheaves. This uses wood supports to tie the cockpit to the hull keeping steering loads from wracking the cockpit. This system has been used for many years and is excellent for conversion of tiller boats as well as new installations. Sheave Bracket System is ideal for installation on stock boats as well as by owners or yards. It is excellent for those boats having the cockpit seat risers along side the radius of the quadrant where wooden blocks can be glassed in on the sail locker side of the seat risers flush with the bottom of the cockpit floor. This unit has a built in quadrant stop and fully adjustable sheaves. Radial Drive Steering System is ideal for sail or power boats up to 40 feet with vertical or nearly vertical aluminum or stainless steel rudderposts, whe7e cables can be led directly onto the drive wheel. The Radial Drive can also be used on boats larger than 40' when using an independent rudderpost stop. On boats over 40' feet Edson would like complete blueprints and requires the final approval of your naval architect. This system is designed to be simple and economical with fewer moving parts. Feel and performance is equal to other Edson steerers. It can be used equally as well with pedestal or bylkhead steerers on any boat with adequate clearance around the rudderpost. It can also be used in conjunction with the Pull-Pull conduit on mid-ship cockpit designs or on boats with a variety of obstructions between the steerer and rudderpost.

52 - 61 46-55 , 62 - 80 56-70 I +Note: Turns of wheel

14 16 18 20 24 output are

4or6
6 15.4 6 15.4 6 or 8 8 20.5

based on using 518"

- 11 tooth sprocket.
The output figures below are based on the following formulae:

I,

ENGINEERING DATA AND FORMULAS
Table for computing length of Roller Chain and No. of ~ u r n s ' ~ . ~ . to H.O. of Steering Systems. ~ Quadrant 90 80 70 Arc Arc Radius Arc Inches Inches Inches Inches

r< ',

0;

~ advantageh ~RWX ~ Rq' where i ~ Rw =~wheel l radius (inches) '1.1 and Rq = quadrant radius (inches) '1.1 for 518"-11 Tooth Sprocket 1.2 for 314"-10 Tooth Sprocket Foot pounds (assuming 401b. input) = Mechanical advantage x 3.33
No. of Turns6.5 1.3 SO" 18 178
20 196

~

8 1.8 217 240

10 2.3 272 307

QUADRANT SIZES (inches) 12 14 16 2.7 3.2 3.6 326 381 435 360 426 480

18 4.1 490 548

20 4.5 544 600

24 5.5 653 735

30 6.8 817 890

To figure the No. of Turns of the Wheel, H.O. to H.O. divide the Chain Travel per Turn of the Wheel into the above.

-22

2 0

CHAIN SPROCKET DATA WITH
,

in.
6.9 7.6

24

.E 26

Chain Pitch in.
518 314

No. of Teeth
11 10

Chain Travel per Sprocket Pitch Diameter Turns of Wheel in.
2.2 2.4

iii ' "

rr 10

6 30
40

mm
15.8 19

cm
5.6 6.1

cm
17.5 19.4

2 S? 5 "f: 36

2 44

Pull-PullI with Radial Drive - For sailboats with an aft cabin this is a natural. The Pedestal installation uses a Fig 841 dropped conduit mounting plate for attaching the conduit at the pedestal. The conduit is routed along the starboard side under a bunk to the Radial Drive. Pull-Pulllwith Bracket is often found where a bunk or lazarette might interfere with a Radial Drive or Sheaves. When a bunk is located under the cockpit use the Edson Fig 825 mounting platform shown in the Pull-Pull section of this catalog. This installation keeps the conduit neatly up against the underside of the cockpit floor. This can only be used with 6.5" or 8" Radial Drive or 8" quadrant dueto chain travel limitations. Hydraulic Steering Adapter Kits Edson Steering Adapter Kits permit any of the Edson Pedestal Steerers to be e a s y l i; , . installed in conjunction with Hydraulic Steering Systems. The below cockpit illustrations show the Edson Pedestal Steerer with endless roller chain and adapter plate connected to a bulkhead mount type of hydraulic helmp pump.

c'm,

Tx

HYDRAULIC STEERING ADAPTER KITS

-

1

A Complete Kit Consists of the Following: . FIG 729 1. Push-Pull or Hydraulic Steering Adapter Plate 4. A 518-11" f ~ o t Sprocket h 2. A 6'6"12.12m Section of 518"11.58cm 5. 4-l/z" x 6"/11.4cm Mounting and Leveling Bolts
Stainless Steel Roller Chain
3. A Master Link

-

Add to this the pedestal, steering wheel and tiller arm of your choice

Regardless which of the four systems is best suited for your boat, a complete pedestal steering system must consist of the following items. 1. Pedestal 2. Steering Wheel 3. Chain and Wire Rope Assembly 4. 1 Pedestal Idler or Conduit Bracket 5. 2 Sheaves or Sheave Bracket 6. Quadrant or Drive Wheel (using Radial Drive Steering System eliminates #5) 7. 2 Wire Take-Up Eyes 8. 4 Pedestal Mounting Bolts 9. 4 Wire Rope Clamps 10. Stuffing Box (if required) Note: For Pull-Pull Systems eliminate item #5 and substitute the appropriate length of Fig 797 conduit. "The number of sheaves will vary for mid-ship cockpits, or particularly complicated aft cockpit arrangements.

Values in chart are for 518" - 11 tooth sprocket. Divide by 1.1 for 314" - 10 tooth sprocket values.

18

Note: Please refer to Planning Guides and Installation Instruction sections for more complete information on specific systems.

I

For complete waranty information - see inside f r o n t cover.

The value of this chart is two-fold. One, to get steerer output secondly to get a working relationship between steerer output and equivalent tiller length. To obtain the equivalent tiller length divide the output figure by 40. For example a boat with a 24" wheel and a 12" quadrant has an output of 432 ft. Ibs. Divided by 40 this equals the leverage of an 11 foot tiller. Second, it is interesting to note that a 30" wheel with an 8" quadrant has the identical output of a 20" wheel with a 12" quadrant the difference being the number of turns. The first with 1.8 turns has fast action and a large wheel (the preference of most racing skippers). The second with 2.7 turns has a sloweraction and a smaller wheel (for the boat used primarily for cruising). Which do you prefer? We can fit the steering action to your boat.

19

PEDESTAL STEERERS
All Edson pedestals are designed for versatile installation in virtually all types and sizes of boats. A well designed and well installed pedestal with its greater mechanical advantage gives better boat handling with more feel than a tiller, and far more usable cockpit space. A pedestal enables the entire family to handle the boat under virtually all conditions. Edson offers 4 basic pedestals. The Fig. 334 is usually used on smaller boats and includes a molded compass adapter for smaller 3", 4" or 5" flush mount compasses. The Fig. 335 is the same basic pedestal as the Fig. 334, only it comes without the molded compass adapter and it will accept most all standard 5" compasses. The Fig. 400s and 420s Deluxe Pedestals, for larger boats, will accept most all 6" compasses, and come equipped with extra needle bearings, and liners, and the pedestal brake is standard. When choosing a pedestal, remember all pedestals look somewhat alike on the outside, yet the inner workings are most important. For instance, the 334 pedestal comes with the same $/8" roller chain used in our larger pedestals. Edson does not believe in compromising by going lighter for a smaller boat, as the loads can become high under storm conditions. All ~edestals are pre-drilled to accept all accessories shown in the catalog with a minimum amount of installation time. Please note: compasses are not included with the pedestal, for compass selection see Fig. 658 in this catalog.
supersensltlve stainless steel needle bearings - Ilke the ftnest winches full.length stainless sh precision centerless, g to Edson.5 exact tolera

_ / C

\~dson's all new 400s series Pedestals are truly the "ultimate" - d i n large yacht steering systems. These larger pedestals are designed t o accept 6" compasses and consist of a stainless steel wheel shaft, stainless steel needle bearings, and stainless steel bearing liners: All rotating parts i n contact are stainless steel.These steering pedestals are virtually wear resistant and should with proper maintenance, last the life of the boat.

'

DELUXE PEDESTAL STEERERS
The400 series pedestals will accept either%" or 3hr' chain.The 3/qN chain is ideal for heavy displacement boats and lightweight maxi ocean racers where quick responsive steering with an additional degree of strength is required. Edson feels this is the closest step yet i n our total commitment to offering the perfect yacht steerer.

extra master link

3%" or 4" dia aluminum tubing. pressfit and welded, with durable, white glossy baked on urethane epoxy exterior coating

shrink fit plastic tubing to cover chain to wire assembly

Fig 400 Shown

Dimension Drawings for Fig. 334 & 335 Pedestals

FIG 334 Size 4-50 Pedestal Steerer

Wheel Hub Size

Size 5-50
Pedestal Steerer

This pedestal will accommodate most all 6" compasses. Normally used on boats over 40 feet, it can also be used on all boats where a larger compass is desired. As well as the all new stainless steel internal parts, there is also a 2nd needle bearing on the wheel shaft end.This ne~2~/2"/5.3cm long bearing surface will withstand the most severe racing oroffshore sailing conditions.The Fig. 400s Deluxe Pedestal with its triple needle bearings is super sensitive and is at its best with large Destroyer wheels and Edson's exclusive Offshore RacinglCruising System. The 400 Pedestal can be fitted with either an 11 tooth No. 5iI sprocket for %" roller chain or a 10 tooth No. 60 sprocket for 3 h " roller chain for larger and heavier boats. Be sure to specify the proper size when ordering.
-

all Edson pre-drilled accessories. Construction is a hardened aluminum insert incapsulated within a reinforced white fiberglass housing. The Fig. 420 Pedestal can be fitted with eitheran 11 tooth No.50sprocket for%" chain oraIOor13 tooth No. 60 sprocket for 3 h " roller chain.

FOR BOTH FIG 400s & FIG 420s-ORDERING INFORMATION
I
Chain Pitch

I

Sorocket l ~ h a i n Travel oer I pitch Diameter Turns of wheel Number

4005
4205

420s

660 6-310 6-313

19.4
314 19

3.1

7.8

9.8

24.8

13

Fig. 334 Size 4-50 Edson Pedestal Steerer is supplied with a molded adapter to accommodate most all flush mount compasses with a top flange measuring up to 6%'' in diameter. To dress up the pedestal, an optional polished stainless dome with a sliding door can be easily added to the cylinder. The 334 pedestal is the same internally as the 335 pedestal; the only difference being the additional molded adapter. The top molded 1 / 2" I adapter as shown on the above drawing has a standard 4 11.5 cm diameter opening, however, it can be opened up to a larger opening to accommodate the compass of your choice. This pedestal is generally used on boats 30 feet and under.

Fig. 335 Size 5-50 Edson Pedestal Steerer will accommodate most all 51~112.8 cm compasses. This is the most popular size of pedestal and is used when the owner wants the larger 5" compass for easier viewing, and course steering with the larger compass number. The choice between Fig. 334 and Fig..,335 is basically one of what size compass you want.This s t e e i er is generally used on 30 to 42 foot boats. This pedestal c a k d - )~ accommodate most 6"/15.3 cm compasses with the use of the Fig. 758 Compass RiserlExtender, Size 56.

-

-

Fig 714 Narrow Base This pedestal base is adaptable to all of the Edson Pedestals. It is very useful when mounting a pedestal on a narrow Bridge Deck with a main sheet traveler. Recommended for pedestals up to about 15"l 38 cm in height. Special Narrow Base Idler (not illustrated in the catalog) is available for quadrants mounted forward or aft of the rudderpost. This 180" fixed narrow base is Fig. 744-4".

Fig 813 2Y2" Pedestal Riser is adaptable to all of the standard Edson Pedestals. If additional height is desired for an existing pedestal, the riser is an ideal solution. The riser mounts to the cockpit floor and fits between the floor and the pedestal, raising the pedestal up 2V2" in height. The Pedestal Riser is white Coated Aluminum and is provided withmount -ing studs and nuts. The riser measuresl03h" 127.3 cm in diameter by 2 % "16.3cm in neight and weighs 3 % Ibsll.6k.

-

-

Fig 690 Milled Base 13h"14.3cm is milled off one side of the base. This can be done on the forward side for placing a steerer against a bridge deck, or on the aft side to clear an emergency tiller. When ordering please specify milled forward or aft and order Pedestal Fig. number and Milled Base Fig. number.

PEDESTAL CHAIN AND SPROCKET DATA
Note: 334 & 335 pedestal steerers, use %"115.87mm chain with 6.gU/17.5 crn travel per turn of the steering wheel. Sprocket data: %"115.87mm pitch, 11 tooth, 2.2"15.6 cm pitch diameter.

20

For complete warranty information

- see inside front cover.

FIG. 646 These bolts with consistently tight fitting 82" countersink heads fit flush with the pedestal base giving avery neat appearance. Four mounting bolts are required with every pedestal. Standard bolts are 4" long. See price page for other sizes and materials.

-

PEDESTAL MOUNTING BOLTS
21

dson
All of the Edson Idlers are designed for maximum strength, minimum friction, and ease of installation. The Figs. 711 , 776, and 801 are totally assembled by Edson using stainless steel grommets that can never loosen from engine vibration. They are fully adjustable and can be securely locked in place after adjustment. Each idler assembly is fastened in place using the four pedestal mounting bolts. This sandwiches the cockpit floor between the pedestal and the idler making avery rigid installation.For0ffshore Cruiser or Racer use Fig 807 Idler.

PEDESTAL
FIG. 711 ADJUSTABLE IDLER is used for those boats having the quadrant on the forward side of the rudderpost, and the'. pedestal either forward or aft of the rudderpost. It is also used for Radial Drive Steering System when the pedestal is located aft of the rudderpost. The sheaves can be adjusted anywhere between 6" forward to 174" aft and locked securely in place to maintain the desired setting.

\" ?

.

RADIAL DRIVE STEERING SYSTEM
PATENT N U M B E R 4040375
-

d s s b n

Fig 711-6"

~&ds wire

I

FIG. 776 ADJUSTABLE CROSSED WIRE IDLER is used for those boats having the quadrant aft of the rudderpost. It is also used for Radial Drive Steering System when the pedestal is located forward of the rudderpost. This idler allows crossing the steering cables inside the pedestal column to give the proper steering direction. The sheaves are fully adiustable between 10" forward to 170" aft and lock in place to maintain the desired setting.
Sheave Size Max. Width Max. Depth

Fig 6078.6" Leads Wire

I [ Fig 711 Adjustable ldler
In. cm
4 6

In.

Dia. Wire

cm
.63 .95 .63 .95

In.

cm
24.5 33.3

in.

Weight 6 1 1 2 9 7 9 1 1 2 8 13

cm
12.7 18.5 12.7 18.5

Lbs. k
2.9 4.1 3.1 4.3 3.6 5.8

10.2 15.2 10.2 15.2 10.2 15.2

to 1/4 to 3/B to 1/4 to3/8 to 1/4 to 3/8

9 1 1 2 13

5 7Vr

FIG. 607A o r B ADJUSTABLE PARALLEL IDLER is ideal for Mid-Ship Cockpit boats where the wire ropes can be led off to one side of the boat and then aft. This is particularly useful for running the wire rope around aft cabin passageways or engine spaces. These two idlers are fully adjustable through 70" arcs and will aim the wire rope in the following direction. Assume 0" is the bow of the boat, 90" is starboard and 270" is to port. Both sheaves are mounted parallel and on a.common pin. Once aligned the idler is securely locked in position by tightening the four pedestal mounting bolts.

Fig 776 Adjustable Crossed Wire Idler
4 6 4 6

Fig 607A or B
.

- Adjustable Parallel ldler
.63 .95 10112 2 7 10112 27 4-1/2 11.5 6-7/8 1 8

8 1 1 4 21.5 1211233.3

5 7'14

Fig 844 Type 776-4" ldlers with Sheave Guards for those requiring sheave auards to orevent the cabks from coming off the sheaves.

with sheave G ~ ~ ~ , . J ~ Fig. 843Type711.4tt Adjustable Fig 844 Type 776.4' Adjustable crossed-wire ldler with Sheave Guards
Sheave Size In. cm 4 10.2 Wire Diameter ~n. cm to 1/4 .63 Max. Width In. cm 9% 24.5 Max. Depth In. cm 6 15.2 Weight k ~bs. 8 3.6

p < U' '

RECESSED ADJUSTABLE 4" IDLER
The Edson Fig 801 Recessed Adjustable Idler is forthose boats having little room for sheaves and wire underneath the cockpit floor. This Recessed Idler can place the steering cables within about 1/4"16.25mm of space below the cockpit floor. With this minimal clearance the wire can be run over bunks, storage areas, fuel tanks, or close engine obstructions. this will open up a whole new area for Pedestal Steering conversion on some of today's boats. The Idler is 103/4"/27.3cm in diameter by 21/2"162.5mm in height. With its simplified construction the Fig 801 can be used with either Radial Drive or Quadrant systems forward or aft of the rudderpost. The cables can be crossed within the column of the pedestal if i t is required for proper steering direction.The Recessed Adjustable Idler is white coated aluminum with aluminum bronze sheave housings and forged brass 4"110.2cm sheaves, weight 11 lbs.14.9k. Note: When ordering Fig 801 Recessed Adjustable Idler please order your Edson pedestal 25-112" high. This will ensure a final pedestal height of the standard 28".

@ :

Edson offers a brand new steering installation for many sail and power boats up to 48 feet. The system is ideal for boats with vertical or nearly vertical stainless steelbr aluminum rudr-) derposts, where the cables can be led directly from the steerer ~323 onto the Drive Wheel. It is ideal for those boats having limited working space under the cockpit floor for mounting sheaves. Installation is simple - no extra structure to glass in, no extra sheaves to increase friction, and no extra timbers for reinforcement. The Edson Radial Drive Steering System* is simple, economical, with performance equal to any other Edson Steerer. Its versatility allows it to be used with pedestal steerers as well as bulkhead steerers. Auto-pilots can be easily installed in the Radial Drive Steering System. (See the Auto-Pilot section of this catalog.) Each drive wheel constructed of heat treated aluminum and supplied with an integral rudder stop. The drive wheel is a "perfect circle" and dished in shape for greater strength. Drive wheels are split in half along the athwartship

axis with the keyway on the solid portion of the hub. The dished shape drive wheel gives a full 21/2" offset. This allows the drive wheel to be turned over giving a full 5" of range for aligning with the Idler. It also allows the stuffing box to be placed up inside keeping the bearing capabilities of the stuffing box right at the wire load line. Each drive wheel will be bored at the factory to your specifications. Otherwise they will be supplied with pilot bore (see chart below). The steerer may be installed either forward or aft of the rudder post by choosing the proper idler shown on the previous page. Bulkhead Steerers with a rudderpost within 4% ft. can use these same idlers. When greater use 2 Fig. 620 sheaves for crossing the wires. Drive wheels are available for 1" to 4% " diameter rudder posts - Fig 777 (for smaller bores), Fig. 800 (for larger bores).'
Note: If pedestal is forward of the rudderpost cross the cables inside the pedestal for proper steering direction.

EDSON RADIAL DRIVE is a PATENTED product of The Edson Corporation, New Bedford Mass.

1

SELECTION CHART
Size Drive Wheel Flg. No. Outside Diameter Max. Bore Pllot Bore

Boat Size (Overall Length)

Max. Slze Keyway

Weight Each

-

0 '

COCKPIT BRACKET WITH 4" SHEAVES
Edson offers two basic types of Sheave Bracket Assemblies, the Fig. 739 Fixed Bracket and the Fig. 740 Adjustable Bracket, Both are equally strong and versatile:The Fig. 740can beadjusted to open a maximum of 29"/74cm with longer bars available upon request. This is particularly useful if the installer is not sure of his exact method of installing at the time of ordering. The Fig. 739 Fixed Bracket is available with "A" dimension in 1 "/2.54cm increments from 20"/50.4cm to 36"/87cm. Other lengths are available upon request. See installation pages for recommended uses. The bracket is of welded steel construction with stainless steel sheave housing held in place with two bolts for each housing. The sheaves are fully adjustable horizontally as well as vertically.

fi

801 Recessed ldler s a standard 711 or 776 ldler inside. Please specify Fig. 801 - Type 711 or Fig. 801 - Type 776 when Ordering.

Up to 35 f V l l m 36 to 41 ft. 36 to 41 ft.

B"120.3 cm IO"125.4 cm IO"125.4 cm

800 777 800

16"140.6 cm 3-1/2"/8.8 cm 21 "153.3 cm 3-318 18.8 cm 21 "153.3 cm 3-112" to 4-112"

2"15 cm 15116"12.3 cm 3-31Bn/8.5cm

318"I.g cm 3/Bn1.9 cm 318"l.g cm

Note: This chart is to be used as a guide with specific recommendations to be provided by your Naval Architect. Note: Boats with high rudder loads may require independent rudderpost stops.

7

'Greater distance possible contact Edson Mote: Minimum distances are for 4" sheaves. Add 2" for 6" sheaves.

* Note: Brass Shaft Keys must not be used with the

' A FIG 740

Edson Aluminum Radial Drive Wheel, as they will cause an electrolytic reaction resulting in failure of the Drive Wheel. Use Stainless S t e d Shaft Keys OnlyL -

22

For complete waranty information - see inside front cover.

dson

WIRE ROPE SHEAVES

STEERING SYSTEM COMPONENTS
~ i hbi) ,

CABLE CHAIN AND FlnlMGS
PARTS A Show the standard Edson assembly of a roller chain and wire rope kit when using 1/2"112.7rnrn #41, 112 "112.7rnrn #4O, or %"/15.87rnrn#50 roller chain with %0"/4.76rnmwire rope. PARTS B Show the standard Edson assembly of a roller chain and wire rope kit when using 5/sn115.87rnrn #50, 3/4"119.05 mrn #60, or 1 "125.40rnrn #80 roller chain with 1/4 "16.35rnrn or 5/16"/8rnm wire rope. PARTS C Show an alternative method of assembling roller chain to wire rope using clevis style wire rope fittings.

Edson bronze or brass sheaves are especially designed for use in wire rope steering systems. All sheave housings are rigidly constructed of solid bronze, stainless steel, or aluminum, and are designed to Drevent the wire from i u m ~ i n a out of the sheave. Scores are machined extra deep, and are concentrk with the bearings to maintain constant wire tension. The bearings for all bronze sheaves are oil impregnated bronze bearings, aluminum sheaves feature precise stainless steel needle bearings. Sheave hubs are wider than the rims to prevent side friction and noise. All sheaves have removeablepins to simplify installation or wire replacement. In addition, all sheave housings have pin arrestor systems designed to prevent premature sheave pin wear. The new Fig 620 and 743 "Thinking Man's Sheave Housings" are another Edson original. The Fig 620-4" has a stainless steel housing for even greater strength and reliability. This is excellent for use on boats of

aluminum construction to eliminate the possibility of electrolysis. 620 is supplied as standard equipment in all Edson steering systems -' for production boats. Edson's Fig 743 is the latest answer for bulkhead mounting. Both sheave housings have elongated bolt hole slots for aligning the wire lead, along with two additional bolt holes for securely locking that setting. The Fig 621 Flat Sheave is ideal for mounting on power boats, or under cockpit floors on sailboats. The Fig 623 Double Upright Sheave Assembly is commonly used on mid-ship cockpit designs on inside steering stations where both wires lead aft on the same side of the boat. In order to ensure a long life and proper operation of your Edson sheaves, proper maintainance is essential. Sheave bearings should be oiled monthly; failure to do so will result in premature wear and the possible seizinq of the sheave.

Roller Chain and Wire Rope with all necessary fittings when purchased from Edson will be fully assembled as shown in A or B. Any portion of the kit may be purchased separately. When doing so, please review the charts shown below very carefully. Fig 775 Chain and Wire Rope Assembly as shown here is recommended for older installations, or newer boats, racing or sailing offshore. These assemblies include two pieces of the appropriate sizeand length wire, the correct length of chain for 90" rudder travel and all of the necessary fittings assembled. After changing the chain and wire, keep the old set aboard for a spare. When ordering, please specify type and size of boat, quadrant size and kit size. For sizes see price page. Stainless Steel Roller Chain and Wire Rope with all necessary fittings when purchased from Edson will be fully assembled as shown in A and B. See Figure 775 on the price page for available kits or make up your own from the items listed below.

A Master Link will be centered

Single Idler

4 4-118"~518"
10.5cm x 1.58cm

114" 114"
6.35mm 635mm

2-11 4 " ~ 6"
5.7cm x l5.2cm

2-112" 2lbs. 6.2cm .9k

I

1 -314 Ibs. .8k

I--

k
I
d

6 6"~5/8" 154crn x l.58cm

318" 318"
9.52mm 9.52mm

3-1/4"x5-112"
8.2cm x 13.9cm

6-1 12" 4.5 Ibs.
16.5cm 2.3k

Fig 623 Upright Double

Upright Sheave

O
1 2

Roller Chain Non.Mag. S.S. Fig. 6305 Size Chain Breakina Weiaht Per Ft. In. rnrn No. ~trengtfi 112 12.70 41 1900 Ibs. 2800 Ibs. 112 12.70 .40 7000 Ibs. 5000 518 15.87 50 314 19.05 60 1 25.40 11000 Ibs. 80 Roller Chain Clevis Adapter S.S. size chain Breaking In. rnrn No. 112 12.70 41 112 12.70 40 2500 Ibs. 518 15.87 50 3500 Ibs. Fig 7365 Max. Wire Ro e Size 3/18 rnrn 3116 4.76 3116
A Master Link will be centered in chain length.

0
A

;E I '% s ':

will be centered in chain length.

O
3

In. 518 314

o
4

Roller Chain Adapter Bronze Fig 6358 Size Chain Tested Max. Wire rnrn No. Strength Rope Size 15.87 50 5000 Ibs. 114 6.35mm 19.05 60 7000 Ibs. 318 9.52mm 25.40 80 9000 Ibs. 318
635A Tested Strength 4000 Ibs. 5000 Ibs. 7000 Ibs. 9000 Ibs.

a
In.

;hi~bles S.S. Fig 643s Max. Wire rnrn Rooe rnrn

Max. Load Ratina

@ Take-up Eyes S.S. Fig. 618
In. 5116 rnrn 8.00

o
5
A

Roller Chain Adapter Bronze Fig Chain Size Chain Max. Dia. In. mrn No. Wire Rope 112 12.70 40 114 6.35 518 15.87 50 114 314 19.05 60 318 9.52 25.40 80 318 Master Link S.S. Fig. 632s Chain Size In. rnrn Chain No. 112 12.70 41 112 12.70 40 518 15.87 50 314 19.05 60 1 25.40 80
6

O
8

Breaking Strength 1780 Ibs. 2600 Ibs. 4700 Ibs. 6800 Ibs. 10000 Ibs.

Nico Press Fittings Fig. 730 Installed (Sleaver only See price pa e Fig 747) Size Wire fested Strenath In. rnrn Rope Using Only 1 ~ G t i n ~ 3116 4.76 3116 4.76 5000 Ibs. 114 6.35 114 6.35 5000 Ibs. 6.35 7600 Ibs. 5116 8.00 114

@W g i Rope Fittings S.S. Fig 647

0

1
Plain Sheave

318"
15.4cm 6"x518" x 1.58cm

318"

3-5/8"x9-118"

2-9116"

8-1 121bs.

9.5mm 9.5mm 90.6mmx 228. lmm

64mm 3.8k

I
-

'

Wire Rope Non-Mag. S.S. Fig. 634 Diameter Breaking Type In. rnrn Strength Construction 3116 4.76 2900 Ibs. 7 x 19 114 6.35 4900 Ibs. 7 x 19 5116 8.00 7600 Ibs. 7 x 19

actE

In. 3116 114

rnrn 4.76 - For 3116-7 x 19 Wire Rope 6.35 - For 114-7 x 19 Wire Rope Fig 618 Take-up Eyes Place nuts on same side and tighten together. Fasten nuts on the long strand as shown here.

Rope Clamps Galv. Steel Fig. 665 Wire Max Load Min. No. Size Size Ratina of - Clamps In. rnrn In. rnrn 3116 4.76 3116 4.76 3120 Ibs. 2 2 114 6.35 114 6.35 5280 Ibs. 3 5116 8.00 5116 8.00 7600 Ibs.

Sheavesonly may be theanswer in many areasof custom boat building, not only for steering but also forcenterboards, custom deck hardware, or remote actuators, such as emergency shut off valvesand C02systems. Great careshould betaken to insurethat the wireand sheave size are matched. For4" sheaves use3116"/4.76rnrn - 7 x 19 wire and for 6" use 1/4'76.36rnrn 7 x 19 wire. Sheave Wire Hub R im Pin Size Thkknsa Thicknea Size Size wt. Sheave Ins. mm Ins. rnrn Ins. mm Ins. mm Cast Bronze Forged Brass
Cast Bronze

Fig 618 Take-up Eyes Place nuts on same side and tighten together.

Aluminum

Cast Bronze

Aluminum

20.3 20.3 25.2 To 518 25 2 To 518

15.87 1-114 31.75 15.87 1-114 31.75

1 1

25.4 25.4

. 11

25.4 25.4

8 3.6 2-112 1.2

QUADRANTS
Edson Quadrants have all been designed for specific uses and proportioned to withstand severe steering strains and shocks. All are cast of either Manganese Bronze or 356lT6 Heat Treated Aluminum alloy. To simplify installation, all quadrants quickly adapt to the exclusive Fig 618 Edson Wire Takeup Eyes. All quadrants will accept wire rope up to 318"19.52 cm in diameter. The various quadrants listed below are shown by rudder post or bore size, and are available in different models including "Space Saving" Offset, standard straight, Double Offset and Dual Ratio Quadrants. When ordering please supply an accurate dimension of your rudder post or the desired bore along with the key size, and Edson will machine the quadrant to suit. Edson allows a 5 to 6 thousandth clamping action of the cap to the rudderpost. The quadrant must be carefully fitted for optimum strength; if it is fitted too tightly the cap could try to bend when tightened, and if fitted too loosely the quadrant could work or drop. Both the above could cause premature failure. Solid stock rudderposts are normally keyed and hollow pipe stock rudderposts are normally pinned. Edson will provide the pin with the predrilled cap. Edson sees a trend toward machined keyways in hollow rudderposts as they allow for easy adjustment up and down the rudderpost. Most keyways are 114" square so they do not penetrate the wall thickness
u 4 s e Quarpmt t FIG 857 Double offset Quadrant S e g e ~ n t m

of the tube. Quadrants for square rudderposts require special machining, and we must be furnished with the exact measurement of the flats on the square and the location of the points of the square. "Space Saving" Offset Quadrants are ideal for boats needing extra room on the rudderpost for the addition of an auto pilot, a second steering station, or where an obstruction exists. The "Space Spacer" quadrant can also be used for boats with excessively raked rudderposts whether mounted with the offset up or down. Edson's "Space Saving" quadrants are available in aluminum as the Fig 842 and in bronze as the Fig 677. With new and improved casting methods available today, Edson's new Fig 842 aluminum quadrant is designed and cast for strength and versatility. It will accept the Fig 857 "bolt on" Double Offset Quadrant Segment which provides a second radius for use with an auto pilot or with a second steering station. Edson's new aluminum quadrants are to be used with stainless steel or aluminum rudderposts and must be equipped with stainless steel keystock or pins when attaching to the rudderpost to prevent electroysis from dissimilar metals. For those with brass, bronze, or stainless steel rudderposts the Fig 677 Offset Quadrant is available.
FIG 842 ALUMINUM "SPACE SAVER" OFFSET QUADRANT 15116" to 3 " Bore Dla. Quadrant . Size (Radius1
Inches cm.

I

R U D E R ACCESSORIES
TRANSOM HUNG RUDDER QUADRANT FIG 612
The heavy duty manganese bronze transom hung rudder quadrant for use on most all boats with outboard rudder, eliminating all levers and pins. The Fig 612 quadrants have a total arc from hardover to hard over of 70". The quadrant can be mounted low enough on the transom to allow the wires to be led just under thecockpit floor to the idler, or it can be mounted higher to fit within the lazarette, for Pull-Pull Conduit installations. As in any opening in the transom, it must be booted or a drain pan or area must be furnished to prevent water from getting into the boat. Available in three sizes, the Transom Hung Rudder Quadrant can be used with all wire systems
Transon Hung

1

)

1 1
I

Hub Height
Inches cm

'Pilot Bore Dia.
Inches cm.

Max. Bore Dia
Inches cm.

Inches

Max. Size Keyway
cm.

Weight Each
Ibs.

K

10 14

25.4 35.6

2" 2

5.2 5.2

15116 2.5 15116 2.5

3 3

6.8 6.8

112 112

1.2 1.2

6.4 8.10

3 4.4 'Larger sizes available on special request.

FIG 857 DOUBLE OFFSET QUADRANT SEGMENT for sizes see price page FIG 677 MANGANESE BRONZE OFFSET QUADRANTS I I .lnto2"BoreDia. I I

I
!

I I I

I

FIG 614 MANGANESE BRONZE QUADRANTS I (1" to 2 : Bore Dia.) I

I

I 1

One Edson specialty is a combination Rudderpost Bearing and above the waterline stuffing box. Edson offers two types of stuffing boxes starting with type B for the most common used rudder shafts measuring 1" through 3" in diameter. Type B Stuffing Boxes are designed to be either fiberglassed in place or fastened to the rudderpost tubing with hose and hose clamps. Type C for the less frequently used and larger size rudder shafts through 3-112", must be glassed in place. Edson recommends fiberglassing the stuffing box bearing to the top of the tubing when the rudderpost is in place. This makes the post a structural bearing and will carry the rudder loads with minimal friction. The hose coupling method can be used, however when under a load the stuffing box is apt to bend and add friction to the steerina svstem. When used with hoses the following sizes can be used: 2 : ' 2-;IT, 3"; and 3112".) See the price page for all available types and sizes.

STUFFING BOX/BEARING FIG 697

F I G 697 type B

I

IG 836 HEAVY HUB VARIABLE LENGTH TILLER ARM

~-~engths

I I

FIG

MANGANESE BRONZE QUADRANTS
1 '1-114" to 2-112" Bore Dia.

(order separately)

I I

Fig. 836 'Heavy Hub Variable Length Tiller Arm Cast of Manganese Bronze Edson's Fia. 836 Tiller

FIG

MAN MANGANESE BRONZE QUADRANTS
1
.2" to 3-112" Bore Dia.1

1

Fig. 808 'Split Hub Variable Length Tiller Arm Cast of Manganese Bronze, Edson's Fig. 808 Tiller Arm is recommended forsmall craft upto35ft. in length. They are designed for use with a9116" jaw opening clevis using a 112" clevis pin. Overall length is 11". Key location will be on arm side unless otherwise specified. Pilot Bore: 1511672.38cm, Max Bore:

Fig. 616 Tiller Arm - Cast of Manganese Bronze Edson's Fig.616TillerArm is available in a 10" size. It can be placed back to backas noted below in conjunction with the Fig. 617 Adjustable Link or at 90 degrees to each other by placing one above the other.

pin.The Fig.836Tiller Arms can be used with many O f the same applications as the Fig. 616Tiller Arm. Overall length is 11-112" Pilot Bore: 15116"12.38cm, Max Bore: 2-114"/5.72cm, Max Key: 112"11.27cm, Weight: 8 Ibs. 10 oz.13.88k. All tiller arms will be furnished with a pilot bore unless otherwise specified.

FIG 676 MANGANESE BRONZE QUADRANTS r2-118" to 3-112" Bore Dia. 16 18 40.6 45.7 2-112 6.4 2-112 6.4 2-118 5.08 2-118 5.08

1 3-112
1 3-112

8.9

1 112

12.7 12.7

26 36

11.7 16.2

8.9 1112

I
26
See "How details on I

I

FIG 835 MANGANESE BRONZE QUADRANTS 1 3-9/16" to 5" Bore Dia.

.

I

FOR DUAL RATIO QUADRANTS FIGS 806 & 848 See the Offshore CrulsinglRaclng page 'Quadrants will be furnished with pilot bore unless otherwise specified. (provided)

1

Available with Manganese Bionze Clevises and a Brass Connecting Link, Edson Adjustable Drag Links are made in stock lengths with specials readily available. Just give us the center to center distance you require. If only the clevis fittings or threaded rod are needed, see Fig 619 or Fig 666.

Fig.6668 . . . . . 8"120.3cm long Fig.666-12 . . . . .12"130.4cm long .16"140.6cm long Fig.666-16 .

.

.. . . ... ..

Heavy Section Cast Manganese Bronze furnished with 314"119.05mn Diameter Pin and Locking Pin. Jav, width is 1-518"14.12cm. Thread Size 1-114-12.
07

For complete warranty information - see inside f r o n t cover

PEDESTAL GUARDS
Cockpits are at their best when they have a strong, convenient hand hold. Edson guards are available in wide and narrow models. The guard is designed to protect the compass from falling crew members and to keep lines clear of the compass. The Narrow Guard allows crew members to easily slide past, and the Wide Guard is excellent for wide cockpits or where the pedestal is located against a bridge deck. It affords extra protection on those boats with a main sheet or traveller just forward of the pedestal. Both Narrow and Wide Guards are also available for the bridge deck or seat risers. These offer an excellent hand hold when coming up out of the companionway or stepping athwartships. Edson guards are also excellent for mounting binocular holders, teak cockpit tables, winch handle holders, and cockpit umbrellas. ORDERING INFORMATION When ordering Pedestal Guards specify pedestal size. Size 45 guards fit Fig 334141' and Fig 335-5" Steerers, and Fig 317-4" and 5" Compass Pedestals. These measure approximately 6-7/8"119.5cm across the top of the bowl. Size 6 guards fit Fig 400 and 420-6" Steerers and Fig 317-6" Compass Pedestals. These measure approximately 8"/20.4cm across the top of the bowl. -. All guards are made of 1"/2.54cm polished stainless steel tubing and come complete with ~~~~d ti^^ ~ ~ ~ Nylon Feet, Machine Screws and Bolts. Guard mounting brackets are white coated aluminum and all holes are jigdrilled for easy installation. Narrow guards are 9-1/2"/24cm on centers and Wide Guards are19"148.26cm on centers. Guards are supplied in standard heights and the stainless steel tubing is drilled at the bottom for easy installation.
One of the advantages of the Black Nylon Foot is the 2bility to sand the base to fit the normal slant of the cockpit floor.The foot can also be easily sanded and radiused to fit up against a Bridge Deck where the cockpit floor is heavily radiused.

-4706 ' h a k,et a P l

PEDESTAL ACCESSORIES
-

WRAP AROUND FRICTION BRAKE FOR PEDESTAL STEERERS
The most popular accessory for all steerers. Brakes are designed to dampen the action of the wheel, especially handy on long runs orwhen operating under power. Can also be used to hold the boat on course under most conditions while the helmsman trims that sheet or goes below. As a safety feature, the brake can always be overridden by the helmsman. All mounting holes in the steerers are predrilled at the factory, allowing simple installation in about 15 minutes. Brakes are constructed of bronze with long lasting brake lining, and supplied with stainless steel shaft and shiny black brake handle. The handle is designed to "pop" if a line gets tangled, an added safety feature. When the boat is unattended, secure the wheel with the brake. In rough weather, the rudder can swing violently from stop to stop causing damage. Note: If you do not own a wheel brake you must tie off your wheel, at no time should your wheel be allowed t o swing free as it could damage your steering system.
Fig 6891.Size 456 fits all Edson pedestals. Weight: 2 Ibs.ll.9K.

,

To fit all pedestals. Supplied 45"l 1.14m high, ~ Wt. 7 tlbs.13.2k. ~ k ~ Size , 45 fits Edson Fig 334 and 335 Pedestals. size 6 fits E ~ S O Fig ~ 400 and 420 Pedestals.

To fit all pedestals. Supplied 54"l 1.29m high, Wt. 7 lbs.13.2k. Size 45 fits Edson Fig 334 and 335 Pedestals. Size 6 fits ~ d s o n Fig 400 and 420 Pedestals.

FOR REORDERING PARTS

'

:

...,

! ;
"

'

A126 HandlelShaft Assembly

/

y
~ 9 Knob 1 (only)

WINCH HANDLE AND BINOCULAR HOLDERS
Handy white PVC winch handle and binocular holders that mount on the front of the pedestal guard. Binocular holders can also be used as a removable in,stallation where the holder and straps simply slip over the top of the guard. All holders are made from flexible PVC and offer excellent protection for binoculars or .handles. Holders come equipped with two Fig 710 Accessory Brackets and all mounting screws.

Fig 788 Console Style Pedestal

7%

'

comes with a 54" High Guard. Both come complete with all mounting hardware.

can easily slide yourclenched hand between the compass dome and the guard hoop.

,I Binocular

11 Fig 794

COCKPIT UMBRELLAS
Edson's Cockpit Umbrellas set up fast and stow quickly and compactly. No more wrestling with a large, bulky awning. Fig 753 Umbrellas simply clamp onto wide or narrow pedestal guards. All Umbrellas can be lowered to allow the boom to swing clear and raised high enough to enable a tall individual to pass underneath. When not in use, they fold to half their length forstorage. Umbrellas are constructed of heavy gage aluminum tube stock; plated steel ribs; and covered with adurabie sun and waterproof vinyl fabric. Umbrellasareequipped with a tilting mechanism which allow them to be tilted about 30" or 45" in any direction. Two Fig 779 polished stainless steel clamps are included with each Fig 753 umbrella. The clamps are designed to fit all guards and 1 " stanchions. Fig 753 Tilting Umbrella, Size 5,5 ft dia. umbrella, wt. 5 lbs.12.2k.
Guard

DACRON COMPASS

ORDERING INSTRUCTIONS
When ordering, specify Figure Number and Size from the l i s t belo Fig 790 Two No. 3 Winch Handle Holders-weight: 6 lbsl2.8k Fig 793 One No. 3 Winch Handle Holder-weight: 4 IbsIl.8k Fig 794 One Binocular Holder for 7x50 Binoculars -weight: 5 lbsl2.2k Sizes for the above holders: Size 95 for guards 9%"/24cm between centers Size 125 for guards 12%"/32cm between centers

ACCESSORY BRACKETS
TO fit all pedestals. Standard height 48", wt. 7 1bs.13.2k.Size 45 fits Edson Fig 334 and 335 Pedestals. Size6 fits Edson Fig 400 and 420 Pedestals.

UMBRELLA CLAMPING KIT
Fig 779, Size I-1/4"(Umbrella Mounting Clamps only) holds 1-114" Umbrella tube to Edson 1" Pedestal Guard. Owner can use his own umbrella with the clamps.
FIG. 779

28

Stainless steel straps that fasten between the uprights of the pedestal guard. Ideal for mounting chart holders, glass holders, winch handle holders, binocular holders or whatever you wish to mount on the guard. Can also be used as removable accessory brackets which slip overthe top of the guard. Furnished with stainless steel mounting screws. Wt. 1 lb./.46k each. Fig 710 Accessorv Bracket - 2 Required 3ize 95 for gua;ds 91/2"/24cm between centers Size 125 for guards 121/2"/32cm between centers

Dacron covers to keep the compass and wheel in first-class condition. Wheel covers areespecially handy for keeping those teak or mahogany wheels looking new year after year. Compass Covers have an elastic bottom rim and Wheel Covers come equipped with Velcro closures. For4", 5" and 6" compasses and wheels 20" - 40". See price page for sizes. Fig 693 Compass Cover Fig 692 Wheel Cover

COCKPIT TABLES

W
'I
I

"
/
-

Top Plate

Lower Plate

/

~

mount just aft of a traveler, bridge deck, or mizzen mast. ' FIG 859 Brackets only for Teak Traynable. Construct your own slide-on table using Edson's new slide-on brackets. FIG 784 Hinged Athwartships Luncheon Table. Similar to the Fig 850, however, this hinged mount table is a more permanent installation where the table can be folded down when not in use. It is also supplied with a quick release hinge pin for easy removal of this table. FIG 761 Teak Luncheon Table. This fold-down Luncheon Table is ideal for those who want to stow their table right at the pedestal guard. The 24" length is in the fore and aft position. It folds against the guard when not in use and can be quickly put into service by clipping the formed wire brackets into place. The Luncheon Table is also supplied with a quick release hinge pin for fast removal. FIG 785 Table Hardware only for Fig 784 and 761 Tables. For hardware only, order Fig 785. Table hardware kits are supplied with complete instructions and all necessary hardware. The Fig 785 table hardware kit can be used to construct both Fig. 784 or Fig 761 style tables. These kits are offered for those wishing to construct their own tables to suit the particular needs of their cockpit.

Fig 761 Table (shown) 13-112"x 2 4 " x 314" Fig 784 Table (not sh~lwn) 24" x 13-112"x 314

Fig 762 Athwartship Dining Table (shown) 30" x 20" x 314 "

A600 Legs (A603 foot)

D;tF

9

5

~

Fig 763 Dining Table (not shown) 20" x 32" x 314

with an existing Convenience Table. When not in use, the table folds down, or can be lifted off the guard and stowed away. Complete with all mounting hardware. Weight 14 Ibs.16.lk. FIG 764 Hardware only for Dining Table complete with instructions and all necessary stainless steel hardware for those wishing to build their own table. FIG 762 Athwartships Teak Dining Table. Designed for wide cockpits or center cockpits. The table measures 20"/50.5cm x 30n176.2cm athwartships and comes equipped with two legs forextrasturdiness. This table features teak fiddle rails on all sides, and "slip on" installation; no tools or machining required. When not in use, i t folds against the guard or can simply be lifted off the guard for storage. Complete with all mounting hardware. Weight 15 lbs.16.8k. FIG 789 Hardware only for Athwartship Dining Table complete with instructions and all necessary stainless steel hardware for those wishing to build their own table. FIG 717 Teak Convenience Table. This table is permanently mounted between the guard and can be simply flipped up whenever required. When not in use the table and all hardware fold completely out of the way between the uprights of the guard. Table measure 8"120.3cm x 20"50.5cm size 820, fitting Edson guard Fig 662 with 9-1/2"124cm between pipe centers only. Weight 61bs.12.7k. Equipped without FIG 718 ~~~d~~~~only for convenience ~ ~complete b l with ~ instructions and all necessary stainless steel hardware for those wishing to build their own table that fits flush between the guard nines ,-.,---CAUTION: Items, such as radios, tape decks and some beverage cans, will cause the compass to deviate when placed to near the compass. TABLE MAINTENANCE All Edson TeakTables must be properly maintained, the teak should be oiled or varnished regularly.
r : . I . I t , . t -,.:a,. rIuuIC: atti).

TABLE HARDWARE
314 #10

I;. i

Ordering Information
When ordering a luncheon table, dining table, or "Hardware Only" kit, note that each table is designed to fit two different size pedestal guards. Measure the distance between the centers of the guard pipes to determine which size you need. The figure number designates the style table you choose, the size tells what size guard you wish to install it on. Please refer to the guard sizes listed below. Size 95 for tabies or kits to fit guards with 9-112"124cm between pipe centers. Size 125 for tables or kits to fit guards with 12-1/2"132cmbetween pipe centers.

I

I

Edson offers "Hardware Only" kits for the handyman that wishes to ='design and build his own cockpit table. Required dimensions and complete installation instructions are given with each kit. Pick the size table you prefer and match with hardware Fig number here. Refer to table ordering instructions for sizes of guards these kits will fit. The following are weight specifications for some "Hardware Only" kits: Fig 718 Hardware Only for the Teak Convenience Table, weight 3 Ibs.1 1.35k (for Size 95 auards onlv). Fia 764 Hardware Onlv for Dinina Table.' weighi 3 lbs.11.35i. Fig 785 ~ard&re Only for ~thwaitships or Forward ~uncheon Tables, weight 2 Ibs.19k. Fig 789 Hardware Only forAthwartships Dining Table, weight 5 lbs.12.25k. FIG 763 Teak Dining Table. A true dining size table 20"150.5cm wide x 32"182cm long for the cockpit. This table features teak fiddle rails on both sides and simDle 8t~liD installation. The table hinae straD slides over the top of the guard and the leg plugs into a stainless steel socket in the forward end of the table. No tools or machining required for installation. Can be used on two guard sizes, and will not conflict

HELMSMAN'S SEAT
Edson's Helmsman Seat is designed to offer the helmsman a comfortable seat which provides better visability over the cabin top and is arched for comfort while heeling. While not in use, the seat lifts out of its seat riser mounted brackets and is easily stowed. The top lifts off to provide a storage place inside the seat for binoculars, charts, covers, etc. Seats are white, molded fiberglass and come equipped with white coated aluminum seat brackets, and stainless steel mounting tubes. Tubes are supplied 27", 32" or 36" long and can be cut to the required length for the cockpit width. The seat height can be determined by the seat bracket location in the cockpit well. On boats with existing flat cockpit seats purchase the Fig 796 Helmsman's Seat without mounting tubes and simply fasten to the existing seat top with the provided mounting hardware. when ordering specify Fig. Fig 770 Helmsman's Seat Wt. 14 lbs.17.6k: Size 27 for Cockpit Wells to 27"168.5cm wide; Size 32 for Cockpit Wells to 32"181.3cm wide; Size 36 for Cockpit Wells to 36"191.5cm wide. Larger sizes to 45"l 114.3cm available at no extra charge. Fig 796 Helmsman's Seat with Mounting Hardware, for mounting on existing flat seat Size 820 Wt. 10 lbs.14.5k. Fig 773 White Vinyl Covered Cusion for Helmsman's Seat, Size 1 Wt. 1 lb.145k.
FIG 773 (719) OPTIONAL SEAT CUSHION (Available in White only)
Not.: When purchased wlth the seat the cushion snaps will be lactory mounted.

'
. cA598

C A P

A5Q9HOSE CLAMPS

Edson's Teak Glass Holders. Fashioned ib teak, Edson offers glass holders for both 3 and 4 glasses or non-magnetic canned drinks. Provided with a mounting strap, the holder easily slides on and off the guard, and provides a convenient place to stow your beverages while under sail or at anchor. Available to fit two different guard sizes. For standard Edson guards measuring 91/zr' between pipe centers order size 95; for guards measuring 121/z0 between pipe centers order size 125. Fig #812 Edson Three Glass Holder, wt. 1.5 Ibs. size 95 and 125. Fig #852 Edson Four Glass Holder, wt. 2 Ibs. size 95 and 125.

Edson's Fig 694 Teak ToplAdapter and Fig 719 Wing Table for those pedestals not requiring a compass or adapting nearly any compass cylinder to Edson pedestal. Both are furnished in natural teak with pre-drilled mounting holes and can be used with all Edson pedestal accessories. Size 45 to fit Fig 334 and Fig 335 pedestals. Size 6 to fit Fig Nos. 300,332,400 and 420 pedestals. Fig 694 1lb.1.46k, Fig 719 2.5 Ibs.ll.1 k. For complete warranty information

- see inside f r o n t cover. 31

A NNV DESIGN IN INSTRUMENT DISPLAYS
' 7 24%-.----+

y

MULTI-FUNCTION PEDESTAL INSTRUMENT DISPLAYS
Note: Check your instruments for magnetism. Before you purchase your electronic instruments. contact the manufacturer to make certain they will not affect your

I

1

Side Pods swivel 180" Top Housing is fixed.
Approx. Wt. 21 Ibs. Fig 837 size 45 to fit Fig 334 & 335 Pedestals Fig 837 size 6 to fit Fig 4005 Pedestal

'I With the ever increasina number of sophisticated instrcl Qx ments on the market today, the question of the location of' these instruments has become of prime importance to the boat owner. The latest trend of mounting the instruments on the steering pedestal has several distinct advantages: It provides for a neat and,efficient steering area, the helmsman has an unobstructed view of the instruments, the instruments become more serviceable, and, of course, it no longer becomes necessary to drill and cut into the boats deck house. Edson has now designed housings and pods for one, two, three or four Pedestal lnstrument Displays. All are designed with the Edson Pedestal Guard which not only protects the crew and the instruments but in turn permits the owner to have a table and other pedestal accessories. These Guards are positioned 4" forward of the pedestals to allow the top housing or pod to be well forward of the compass lubber line: this aives the helmsman a clear view of the compass. AII ~ d s o n Housings and Pods are of hand layup fiberglass with a white polyurethane finish. The Pods swivel around to be easily viewed by other crew members in the cockpit. The Black Plastic Face Plates will accept virtually all instruments (up to 5%" 0.0. bezel and 4" total depth) and they are, easily cut to suit the instrument with a fine tooth satire saw. All four of the Pedestal lnstrument Displays shown, come complete with a Stainless Steel Guard, Guard Mounting Feet, Top Plate, HousinglPods Mounting Platform, HousinglPods, Black Adapter Face Plate, all necessary hardware, and an Installation lnstruction Sheet. For steerers already equipped with guards see the price page.

.-

FIG 830 . . Multi-Function Display (Combi Installed)

FIG 830 Multi-Function Display (Signet Installed) -

-

FIG 838 Triple lnstrument Display Side Pods swivel 180,Top Pod swivels 800 Approx Wt 18 Ibs.
Fig 838 slze 45 to fit Fia 334 & 335 Pedestals Fig 838 size 6 to f i t Fig 4005 Pedestal

The new Fig 830 Multi-Function lnstrument Package has been carefully designed by Edson to incorporate the latest thinking in Pedestal lnstrument display. The Stainless Steel Guard extends above the Housing to protect the instrument and to provide the crew with a solid handhold.The Housing is positioned above and forward to provide full access to the compass. The face of the Housing is angled up toward the helmsman for easy viewing of the Multi-Instruments. The separate Mounting Platform allows for removal of the instrument when servicing for winter storage, or to prevent vandalism. As shown here the Housing has been designed to enclose the Multi-Function Signet or Combi instruments. The Housing can also display up to three of the new square faced instruments such as VDO, Kenyon, or Brooks & Gatehouse and,are easily installed by using Fig 833 Black Faceplate. FIG 830 Includes: 54" high Guard and Mounting Feet, Top Plate, lnstrument Housing, Wiring Grommet, Mounting Platform. necessarv Hardware. and lnstruction Sheet. Approx. .. wt. 15 lbs. All lnstrument Housings and Pods are made of hand layup reinforced fiberglass, coated with a,white polyurethane finish.'The Guards are Polished Stainless Sleel. and the Platforms and Top plates are white coated aluminum. All Guards are furnished with Black Mounting Feet and Bolts. The lnstrument wiring runs down through the Guard tube on Guard Mounted lnstruments - a rubber Grommet is provided. The wiring passes thru the Pedestal on Pedestal Mounted instruments. The Housing used in the Fig 830 Display above is also available as a separate Multi-purpose unit, i t can be mounted through its bottom, back, or top making i t adapation (Navigation Station, Cockpit, Deckhouse, etc.) FIG 832 Housing Only (Specify make and modelof instrument to be used). Approx. Wt.2Ibs. The Fig 833 Black Face Plate is designed for use on the Fig832 housing. This adapts the Housing (51/2" Bezel dia. or less) for use with one or two round instruments as shown or up to three square faced instruments. This Face Plate can also be used to install other instrumentation such as swit-

Instrument Openings are cut and prepared by the

Instrument

FIG 722 Double Instrument Display ment can use a

Note: The owner is cautioned that Pedestal Mounted instruments are more vulnerable to breaking seas than .when bulkhead mounted. FIG 833 Black Plastic Face Plate (TWORound lnstruments Installed)

---- ..-

the pedestal. The Pod comes equipped with the Black Plastic Face Plate which is easily cut out to accept the instrument. FIG 725 Size 5 includes Pod, Swivel Base, Black Face Plate and necessary hardware. Appro~. Wt. 1Ib.

-

, standard guard.

Note: Check your instruments lor magnetism. Before you
purchase your electronic instruments, contact the

'

FIG 829 Sin le Instrument Bisp~ay Ideal for the boat owner who has cabin mounted instruments and wants to add one, more. Pod swivels approximately 80 ".
Approx. Wt. 12 Ibs. Fig 829 size 45 to fit 3 335 Pedestals Fig 334 i Fig 829 size 6 to fit Fig 400s Pedestals

ORDERING INFORMATION If your boat is already equipped with a standard 45" high guard we recommend that it be replaced with a54" high guard for better viewing of the compass and a better hand hold. These instrument pods and housing will fit virtually all Pedestals made anywhere in the world. Please note the make and model of the steerer so Edson can accurately fill your order. The Guard Top Plates are made in two sizes: Size 45 to fit Size 4 and 5 Pedestals (6%"Top Plate 1/4 " holes in a 51/4 " bolt circle); Size 6 to fit Size 6 Pedestals (8" Top Plate 1/4 " holes in a 6%" bolt circle). Mounting Template will be urnished with order. See the price page for orderingproperly.

-

-

-

-

T 12.7cm o
INSTRUMENT
i

~

$

E

'

L

LTi.gm4
FIG 832 Housing Only (Shown with Cornbi Installed)

/'
Swivel Mounted Pod

PEDESTAL ENGINE CONTROLS
Edson's pedestal controls are available for most all popular marine engines. These controls can be neatly run inside the pedestal column or they can be externally mounted for those who appreciate an easy installation, and like to have the heart of the controls openly available for continuous visual checks. All models feature the safety of clutch and throttle handles protected between the pedestal and the steering wheel. This prevents accidental shifting of the engine by an unsteady crew member, and keeps handles clear of the main and genoa sheets. All control handles are conveniently located so the helmsman does not have to look away during important docking and close maneuvering situations. Athwartship handles allow easy installation on most transmissions, including
A THI!O,~T.LR~

< . , V-drive without modifying the clamping bracket. Each control,
?\?

PEDESTAL ENG NE CONTROLS
FIG 816 MECHANICAL CLUTCH AND THROTTLE CONTROL
Throttle Control
THROTTLE HAN.DLE

is thoroughly engineered for specific engine shifting re-\!'' quirements. All controls use rugged stainless steel shafts, with minimum maintenance oilless bearings, and safety color coded handles, RED for the throttle and BLACK for the clutch. All controls are pre-drilled to easily adapt to all Edson pedestals. Caution: Final selection of Edson engine controls MUST be determined by the size push-pull cable specified by your engine manufacturer. Part number of existing push-pull cables is often found stamped into the plastic jacket of the cable. (For additional help identifying your cables See "Control Cables" below. When ordering specify pedestal size 4 , 5 or 6 .

Fig 816 Mechanical Clutch and Throttle Control often referred to as "Hydraulic Shift", but is now used for shifting most of the newer mechanical transmissions such as the Hurth Gear specify Fig 734 Cables. This shift has all of the same characteristics as the Fig 751. It is specifically designed for modern "easy to shift" mechanical transmissions using 33c type cables. With 3-114" inches of clutch travel, it exceeds the travel requirements of the push-pull cable. This feature assures easy installation, and most importantly full engagement into gear.

HYDRAULIC ENGINE CONTROLS
INE

Hydraulic controls are to be used for hydraulic transmissions ONLY, for example, Borg Warner uses two Fig 734 cables.

Mechanical Controls: Often referred to as "Mechanical Shift",
CABLE HOLDER
WASHER

FIG 708 HYDRAULIC CLUTCH AND THROTTLE CONTROL
DER

II screws must be inspected and kept

FIG 708 Hydraulic Clutch and Throttle Control

Fig 708 Hydraulic Clutch and Throttle Control features easy to reach'color coded handles, conveniently located between the compass and pedestal top. Cables are securely fastened inside the pedestal column. This control features ease of installation with the neat appearance of all inside mounted push pull cables. Wt. 4 Ibs.Il.8k.

FIG 728 HYDRAULIC CLUTCH AND THROTTLE CONTROL

CONTROL,

7

Fig 728 Hydraulic Clutch and Throttle Control has all of the same features as the Fig 727 except it is specifically designed for hydraulic transmissions only. It can be easily converted to a mechanical control and vice versa by stocking - a couple of minor parts. Wt. 6 lbs.12.7k.

ENGINEERING DATA
1. All Edson engine controls are designed for use only with engine transmission having detents to locate and hold the transmission in gear. 2. Lead cables under the deck using a minimum number of bends with a generous radius. Tape or clamp to several structural members to reduce cable lost motion, and prevent interference with sheaves and wire rope. 3. If engine vibration causes unwanted throttle movement, dampen with a Fig 665 - 3/16"14.76mm wire rope clamp on the cable jacket as close to theengineas possible. Tighten until the throttle is satisfactorily stiff - but do not overtighten. 4. Maximum input loads: Fig 734,40 Ibs.ll8k; Fig 735 180 lbs.181 k. 5. Attach the push-pull cable to the engine shift lever at a maxi-

Both push-pull cables are run neatly within the pedestal, well away from the steering chain and cables. The increased leverage allows effortless shifting, and throttle control with one hand always leaving the other available for steering. Built in handle stops prevent cables from fouling in the steering chain and cables. Note how neatly the 10" long Clutch Handle is tucked between the wheel and the pedestal. That is why Edson calls it a "Safety Handle" - it is out of the way of snagging lines, and possible unsteady crew members. The mechanical shift provides an extra throw (Max. 3-318") for particularly difficult to shift engines. Weight 4 Ibs.ll.8k.

Extremely compact and engineered to reduce installation time to a minimum. The whole control can be preassembled off the boat and literally dropped into place. Control cables, lead through their ,own external, polished stainless steel tubing, eliminate possible interference with steering chain and cables, and leave additional space for future use of Edson pedestal mounted instruments. The mechanical shift features an extra long cemovable stainless steel shift handle, and easy access stowage hole. Built in handle stops allow a full 2-112"16.2cm of throw from stop to stop. Weight 6 lbs.12.7k.

CLEVISES WITH PINS CONTROL CABLES (FIG 734 & 735)
Control cables are not included, but can be purchased from Edson, or your local supplier. For lengths available see the price page.
O.D.9116 5/16-24 THREAD

Each engine control is supplied with solid bronze clevises and brass clevis pins for the engine control end. Extra C ~ V ~ for S ~ S the engine must be ordered separately. These corrosion resistant clevises can be used with any of the control cables listed on this page. +FIG. 805 SlZE 1.75 THROTTLE CLEVIS

-

I \I
s ~ l CLEVIS n
FIG. 810

SPECIFY LENGTH when ourchased locally use:EOUIVALENT TO (FIG. 735) EQUIVALENT TO (FIG. 734)

(USED I N @FIG. 751 & 727)

d -y-~~D%%

FIG 734
4

o===Lr

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,

fA

0.D.'"

*

\ "5-

y *
-

34

ConlmI cables may not be cut sb measure carefully before ordering.

SPECIFY LENGTH

\b

h6P4THREAD

y16

u
For complete waranty information - see inside front cover.

+ b

FIG. 805 SEE 4.5 THROTTLE CLEVIS USED I N FIG. 751, 708 & 816

35

PULL-PULL STEERING SYSTEMS

;w'
I-,

MIDSHIP COCKPIT INSTALLATIONS
Shown on this page are the two most popular methods of running the Pull-Pull conduit in a mid-shipcockpit installation.The top drawing shows theconduit running down the starboard sideof a37 footer, the end fittings of the conduit are attached to the gussetts or reinforcing that is normally located below the aft bunk. This type conduit can run through a sail locker, or in a hanging locker, as the wire is totally encased and there is no chance of the moving wire catching or jamming. Being conservative, we have limited the PullPull to boats 42 foot or less as we feel that long lengths of conduit would reduce the sensitivity of the steering. However small sections of Pull-Pull conduit can be used on any size boat. In our continuing program of development these systems have been experimentally installed on several 48 foot motor-sailors with excellent results. The next drawing shows a very popular method of running the conduit, that of straight down the center of the boat and then up to two of the new sheavelconduit idlersand then into thequadrant. As can be readily seen there are two lengths of conduit that carry the steering cables from the pedestal down and aft past the engine, and they are terminated at a strong bulkhead alongside the propellor shaft. There are then free lengths of wire that go aft to an area just forward of the rudderpost and the conduit is again used. This aft conduit need normally only be 3 or 4 feet.in length and would lead the steering wires up and out to two sheavelconduit idlers and then 90 degrees into the quadrant. With two seperate conduits per side the cost is reduced, the friction of excessive length is reduced, and maintenance is made much easier. Also shown is a very popular 36 foot Pilot House Sloop using a combination of sheaves and conduit to give a good versatile.system. The forward steering station uses an Edson Figure 338 Bulkhead Steerer going down to a Figure 625 Idler and then aft. Part way back two 8 foot lengths of conduit allow the wire to go up one and down the other side of a tank; this run eliminates eight sheaves at this point. The aft steering station incorporates a Pedestal or Bulkhead

INTRODUCTION
The following four pages cover the latest addition to the Edson Family - the Pull-Pull steering systems. These systems are adaptable to power boats, midship and aft cockpit sailing craft. Basically thesystem is used in conjunction with apedestal or bulkhead steerer and theconduit takes the placeof sheaves.Theverysimplicity of the installation makes this method of steering very appealing. The Pull-Pull conduit is made with an inner core of polyethylene which is covered by many strands of steel wire. These wires are then wrapped with aflat wireand thewholeassembly is then sealed by a plastic cover. The steel wrapping gives the conduit that extra strength and is exclusively an Edson feature.The conduit comes to Edson from the aircraft industry and has been successfully tested to 600,000 cycles without failure. The Edson Figure 827 Lubricant (which is used in maintaining the Pull-Pull system) is an inert base oil combined with Teflon and is an important addition as it reduces friction bv about 30 oercent.

The easiest of all methods is that shown here, that of takina a bulkhead steerer on either power or sailboat and run it out around

The conduit can snakearound obstaclesorpass neatly through a cabin area or over and around a tank heater;exhaust line. In effect, we recommend Pull-Pull where straight; line sheave to sheave wheel cable systems are difficult to fit. We find that on many pilot house boats with dual steering stations that the aft steerer will be all sheaves, but the forward station will use a combination of sheaves and Pull-Pull conduit. The conduit will be used fora length of 8 to 10 feet as it snakes down the interiorwhile going upand over and down an obstacle and then into a Radial Drive or other sheave.

, -

SAILBOAT INSTALLATIONS
On the following pages we are showing the various methods of installing the conduits as well as the different specialized hardware designed by Edson to make the installation easierand also to allow for easier maintenance and inspection of the completed system. As in all steering systems, the basic setup should be made to use as many of the existing structural members as is reasonably possible. If a bulkheadcan belocated to serve as an anchoring point for the conduit or one of the new conduit sheave assemblies, so much theeasier. Needless tosay, the bulkheads must bestrong and up to the steering loads that will be put upon them. The aft plywood gussetts must'be adequately reinforced to accept theend fittings of the conduit. An easy way to locate theend fitting is by placing a %inch dowel or rod in the groove of the quadrant and at 90 degrees to the centerline go to the gussett which is fore and aft and drill a 'la inch hole for the conduit end fitting (see illustration). With the dowel in the other groove of the quadrant, drill the opposite gussett for the opposing Pull-Pull conduit.

2
: " -

'

p'

TYPICAL OUTBOAR

Pull-Pull easily adapts for use with outboard rudder boats as shown, cables run beneath the sail locker on one side and under a quarter-berth on the other. Pull-Pull is shown here in a particularly complicated aft-cockpit arrangement. This illustration shows the Pull-Pull conduit being run between quarter berths and around a tank where wire rope and sheaves would be very difficult to insta

Edson's Pull-Pull systems easily adapt to include automatic steering. The sketch above shows the auto-pilot placed under a berth and connected to a separate quadrant. On the pilot house 36 to the left the auto pilot operates off the bulkhead steerer. The two sketches at the left show additional methods of running

If there are no gussetts opposite the quadrant radius, the Figure 824-17 Bracket can be used as it can be bolted to a flat surface either parallel to the top of thequadrantwith thestop pointeddown or on a flat parallel surface directly under the quadrant. This bracket must be carefully located and well bolted down as the stop pin must hold the expected rudder loads in the hard-over position. For complete warranty information - see inside f r o n t cover.

&.NOTE : A garden hose marked in 1 ' increments can be used to simulate your conduit when planning out your system. EXTRA SUPPORT

,

'= RUDDERSTOPS

36

w.

ds4t.n

PULL-WbL STEERING SYSTEMS

PULL-PULL STEERING ASSEMBLIES
ORDERING INFORMATION

Edson

. f , , / Edson has designed a number of special fittings for use with the Pull-Pull systems. For ease of selection we have noted the conduit itself and then divided up the fittings as to Wheel End and Rudder Post End of the system.The conduit and wire rope can be easily cut so estimate a little extra length when ordering. As shown here you can purchase long lengths of conduit and a number of end fittings and design your own system right on the boat.
FIG.797.SIZEl PulllPull Conduit Assembly. Length is measured from end to end of the conduit itself. Comes equipped with two end fittings with clamps ready to screw on to the conduit. Two lengths o f conduits are required for necessary wire and fittings, see the cable and chain fitting page. FIG.853-SIZE250 PulllPull Conduit Only. Same as above except in lona lenaths. Stocked bv Edson in reel but available in one foot increments. 13 oz. per ft. 3/4" OD (.23k per 30 cm 18.75mm OD).

For sheaves and wire we recommend X s inch 7 x 19 Fig. 634 Wire and 4 inch sheaves for boats to about 38 feet, and 1 h inch 7 x 19 wire with 6 inch sheaves for larger boats. For rudder loads or unusual design configuration you must consult your Naval Architect. For sizing of the system check the appropriate pedestal and bulkhead pages of this catalog (the deisgn criteria shown on these charts likewise applies to a Pull-Pull system).

A

@Minimum i /

8"120.3cm Radius

FIG. 854

COMPLETE
~1d.853

IG. 854. SIZE 250 Conduit End Fittings with P.iamnc snd t , . , , . , ,rluts. Two required per Conduit. Order a supply to go with the Fia853 Conduit. Molded ~ e ? c o n .

STEERING WHEEL END.
FIG. 841 SlZE 2 Drop Conduit Bracket - The 4 bolt holes match the pedestal base. Drops the conduit ends 2" below the cockpit floor - more if blocked down. Makes it easy to feed the wire down and to lubricate the system. Wt. 1 Ib.

1

RUDDERPOST END
FIG. 824. SlZE 17 Bracket with Rudder Stop. For best alignment, the bracket must be mounted paralel to the quadrant face. The stop must fit squarely on the solid part of the quadrant; not the web of the quadrant. 3 lbs.11.35k

-

c!a

FIG. 840 SIZE 4 or 6 Upright Conduit ldler - Comes with predrilled pivot point for ease of alignment of sheaves with quadrant radius. conduit threads into the end of the casting. Size 4" Aluminum with Brass Sheave 2 Ibs.l.9k. Size 6" - Bronze with Bronze Sheave 5 Ibs., 2.5 oz.12.31 k.

-

PULL-PULL INSTALLATION INSTRUCTIONS
This section of the catalog has been designed to assist the installer with the proper layout, adjustment, and installation of this equipment. Please read this carefully, and go over all of the many drawings with the idea that each one will contribute to the end design and layout. 1. Unpack everything and layout on the floor the basic arrangement of the system. ~ a k e s u r you e fully understand the use-of all components and their position within the system. 2. Locate and fasten the steerer in place, be it Pedestal or Bulkhead. Place the appropriate conduit holding method in place underthe steerer and attach the conduit to it. Make sure that the holding device is far enough from the steerer to allow the roller chain to travel its full length without the chain ends hitting the conduit, (usually 65 degrees to 85 degrees Rudder Travel). 3. Place the Quadrant or Radial Drive on the rudder post in a location where the conduit can be aimed directly at the proper groove.This adjustment can be assisted by using a3!sinch wood dowel or equivalent. Place it in the groove and aim it from the centerline of the boat to theappropriateattachment point of the conduit. In the case of Radial Drive, the two conduits can be within afew inchesof each otheras long as they lead in astraight line to the groove. Make sure that the correct lead is going to the correct side of the QuadrantlRadial to get directional steering. Keep the conduit bends as generous as possible with no less than an 8 inch radius. 4. With the system in place install thewireand chain in thesteerer and conduit. Place an adequate amount of the Figure 827 Lubricant on the wire as it is slid into place. Make sure the wire is precleaned of grit and that the end has no wire burrs that could damage the inside of the conduit. Fasten the wire to the Figure 618 Takeup Eye and tighten so the chain is centered as the rudder points dead ahead.

MAINTENANCE
1. The roller Chain should be oiled (not greased), the steerer bearings oiled if bronze and greased if Needle Bearings. 2. Although theTeflon grease is "trapped" within theconduit, the wire is out of sight and should be inspected at least oncea year and re-lubricated more often if the boat is contemplating an offshore or lona distance cruise. After five years the wire should be replaced a n ; the old wire kept for spares if it is in useable form. The steering is the one piece of machinery used all of the time that the boat is away from thedock. Most of the "horrorstories" that are heard regarding steerers is one of unfamiliarity of the system combined with lack of maintenance. With a well designed, well maintained steerer the boat should be a lea sure to all.
FlG.825

FIG. 825 SIZE 1 Internal Conduit Bracket - Mounts within the pedestal base to allow conduit to hug the bottom of the cockpit floor. Must be used with 8 inch Quadrant or radial Grive to prevent steering chain form overriding. Wt. 7.5 ozs.13.38k aluminum.

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0

FIG. 798 SIZE 2 Holds 2 Flat Conduit Plate Conduit ends under either a pedestal or cockpit floor. Wt. 1 lb.145k Plated Steel.
FIG. 798

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FIG. 847 SlZE 4 or 6 Flat Conduit ldler

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FIG. 799 SIZE 2 USING FIG 827 TEFLON LUBRICANT
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Aluminum with Bra 2 oz.1.952k. Size 6" - Bronz with Bronze Sheave 5 lbs. 5 oz.12.38k. A 4 ounce jar of FIG. 827 -SIZE 4 Lubricant inert base oils (non-petroleum) combined with Teflon. This is the very best available for Gonduit lubrication. FIG. 827 -SIZE 75 Applicator Tube of above lubricant, 3/4 OZ.

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i,

NOTE: At all times make sure that the entire assembly is tight, all screws and bolts are well fastened down and all parts are well aligned and that the cable; is well lubricated.

'

Right Angle Bracket Mounts chain length below a Bulkhead Steerer. Easy anchoring point for both conduits. Wt. 6.5 02s. 2.93k aluminum.

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d s 4 c . n
AUTO-PILOT STEERING SYSTEMS
When planning your steering system it is best to think ahead. Auto-Pilots are more popular than ever and easier to install. Edson nas developed three basic methods of attaching auto-pilots. first - all Edson Bulkhead Steerers, Rack and Pinion and Worm Steerers can have auto-pilots attached directly to the wheel shaft extension or the wheel shaft itself -nothing extra to purchase. Second - the use of the Edson Figure 320 Auto-Pilot Drive with the addition of one or two sheaves and the appropriate roller chain can adapt virtually all Edson Pedestal Systems to Auto-Pilot attachment. With the 320 the boat can use an extra quadrant or radial drive for a completely separate system or can introduce the 320 in to the basic wire system. Third - the all new Edson "Rapid Drive" for a right angle gear box drive - the simplest system for owner, yard, and boat builder. As a general guide the simpler the system the better. On any installation involving electricity the area must be well prote~ted from moisture and the wires used must be of the correct size and used with good solid terminal ends. At no time can the unit be exposed to salt water such as would occur if the electrical panel was placed below a sail locker. As obvious as this may sound we still see many units so mounted. The compass unit must be kept away from the boat's navigation compass as well as from other interferences such as an alternator on an engine. Take the Fig. 320 Pedestal System first. There are two basic concepts that can be used in the installation of an automatic oilot with a oedestal. One is to place the Fig. 320~uto-pilot Drive Unit withinthe boat's existing steering system. This would be as in illustrations 1 and 2. A second method would be to use a second auadrant or radial drive that would in effect make an independent system. here is a great deal of merit to this latter approach as any boat would then have three methods of steering. There would be the :egular boat's steering system, the automatic pilot driven by electricity and the emergency tiller. The extra quadrant or radial drive would eliminate having to cut into the boat's system and is generally the preferred method for conversion to an autopilot. As can be seen in Figs. 3 and 4, the extra quadrant or radial drive can be placed above or below the regular steering system's quadrant or radial drive and in the case of the quadrant on either the forward or aft side or for that matter on a fore and aft plane. The ultimate choice is determined by where you have room for the actual pilot. TYPICAL AUTO PILOT ARRANGEMENTS NOTE: See Midship Planning Page 44 for more auto-pilot arrangements.

RAPID DRIVE
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A MEW CONCEPT IN AUTO-PILOT STEERING
[ > )

FIG. 320 AUTO-PILOT DRIVE SIZE 2
The Edson Fig. 320 is an investment cast non-magnetic brass frame with oil impregnated bronze bearings, bronze sprockets, and easily adapts to all wire rope steering systems, either under the pedestal or in a remote location. Ail model pedestal steerers, and the Auto-Pilot Drive Unit use 5/8"115.87 mm chain which travels 6.9"117.5 cm per turn of the steering wheel. Sprocket data: 5/8"/15.87mm pitch, 11 tooth, 2.2"15.6cm pitch diameter.

Rapid stands for Rack and Pinion Independent Drive and incorporates the latest in engineering from Edson. Rapid is adaptable to virtually all types of boats be they power or sail with wheel or tiller. The steering system must be of the easily reversing type or in the case of a Hydraulic Steerer be capable of being totally bypassed. The unit attaches directly to the rudderpost of the boat and the frame of the Rapid bolts to a flat platform 90" to the rudderpost. The auto-pilot attaches to the Rapid unit with conventional sprocket and chain reduction and with Rapid Drive there is no need for additional rudder stops except in the case o f tiller steered conversions. Precision cast bronze aears orovide effortless ooeration. without noticeable friction or noise. hi unit'operates withl.8tu;nsof the shaft in 800f rudder travel; your Auto-Pilot manufacturer will specify the sprocket sizes when you order the pilot. One of the Edson Rapid Drive features is its compactness. As noted on the dimensional drawing, the unit takes up only a total width of 191h inches, and a fore and aft dimension of 11" plus the 3" shaft extension. When ordering your Auto-Pilot, please note that the shaft for the sprocket is 1" with a lh" keyway. Maximum Input Rating of the "Rapid" Drive is 1,000 inch pounds based on a % " #41 ten tooth power unit sprocket. One of the variations of the unit is the Fig. 319 Rapid Drive which incorporates the universal and an extra self-aligning bearing. This unit allows either the basic Rapid Drive to be mounted other than fore or aft and to angle the shaft extension to facilitate locating the actual Auto-Pilot. The illustrations below show some of the many variations available when using Rapid Drive. ORDERING INSTRUCTIONS Rapid is available in 6 sizes for rudderposts of various sizes. When ordering it is necessary to specify the rudderpost bore, keyway size and its position, that is on the geared segment side or the cap side. The geared segment can also be attached by pin or set screws. For these methods p p l e a s e see the quadrant page of this catalog. Be sure and specify your pree r r e x h o d .

Weight: 19'hlbs.

For Fig. 318 and 319 the following sizes apply:
Size 2 Size 4 Size 6 Size 8 Size 10 Size 14
1/2" to 1-3/16 1-1/4" to 1-13/16" 1-7/8" to 2-5116 2-3/8" to 2-13/16 2-7/8 to 3-1./2

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I

3518" to 5"

RudderpostSize RudderpostSize RudderpostSize RudderpostSize RudderpostSize Rudderpost Size

WORM STEERERS
Worm Steerers can have the Pilot Sprocket on the aft extension or between the rudderost and the aft side of the wheel. Before guilding the boxlcover you must first establish the size of the sprocket that is furnished by the pilot manufacturer.

1 6 RACK AND PINION
Edson Rack and Pinion Steerers can all have Pilots attached just fopvard of the steerer frame.

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ORDERING INSTRUCTIONS 7 L, y When planning an Auto-Pilot System you must furnish the pilot manufacturer the number of turns hard over to hard over in 90" in your steering system so they can recommend the proper size drive sprocket. The number of turns and length of roller chain for a given size quadrant or Radial Drive is shown in the selection chart for each type steerer. In the case of conversion to a pilot h i t h a pedestal, it is necessary to purchase the following items: 1) Fig. 320-Size 2 Auto Pilot Drive Unit, 2) an appropriate length of 5 / ~ " Roller Chain, Fig. 630s. The length is determined by the quadrant or Radial Drive size to which the pilot is to be attached. This should be accompanied by the necessary wire rope, roller chain, master links, end fittings, and the necessary extra sheave or sheaves to accomplish the installation. Be sure to use the same size sheaves as are in the regular steering system for the boat.

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The Rapid Drive and the Auto-Pilot must be securely held to a platform. The electrical wirGg to the Auto-Pilot must be of the size recommended by the Auto-Pilot maker and fastened with good solid terminals. The installation must be protected from moisture. As in all exposed gearing the Rapid must be covered by a clear Lexan or equivalent cover to keep equipment and fingers out of the mechanism. The clear cover permits ready visual inspection. Maintenance of the Rapid is simple - use #30 or equal Motor oil on the shaft bearings and on the geared segments and wipe across the bottom of the segment. Water pump grease can also be smeared on at this point. The unit should be inspected like all steering equipment and it is wise to checkand oil it at least once a week.

Edssbn

ENGINEERING AND INSTALLATION GUIDE
AFT COCKPIT STEERING
pI i'+
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ENGlNEERlMG AND INSTALWTBON GUIDE
'1

Introduction This Aft Cockpit planning guide has been written to assist the boat owner, boatyard, and the designer in making the most convenient pedestal installation for any given cockpit design. Before making a final decision on the location of the steerer it is always a good idea to make a dummy steerer out of a 2 x 4, a short length of broomstick handle for the shaft and a cardboard or plywood cut-out of the chosen wheel size. At the same time the area below the cockpit floor should be checked for obstructions such as tanks, lines, etc. and also to check to see if the builder installed cockpit floor reinforcing and its exact location. The location of the winches and the helmsman's visibility should also be noted.

AFT COCKPIT STEERING (Continued)
lllustration 6 shows the rudder post forward and the steerer aft. Note that the wires can run forward or aft to the quadrant. If the steerer is placed up against the rudder post the forward side of the base can be "Milled" off to gain space. With the helmsman aft all of the crew is forward and they must handle the sailing of the boat as the helmsman can not contribute any reasonable assistance. This is usually no problem on a 45 footer that requires a larger crew but on a 35 footer or less i t can present problems. However, when cruising this can be an advantage since the skipper can supervise sail handling and keep track of children and guests.

Illustration 2 shows a forward steerer installation using Edson's quadrant and sheaves. Note how the Clutch and Throttle Control is safely nested between the wheel and guard. This prevents snagging lines or accidental shifting, while keeping controls close at hand, the helmsman does not have to look away during that important manuever.

lllus tra tion 4
lllustration 4 shows pedestal in mid cockpit using Pull-Pull shown in a particularly complicated arrangement. This illustration shows the Pull-Pull conduit being run between quarter berths and around a tank where wire rope and sheaves would be very difficult to install.

TYPICAL OUTBOARD RUDDER INSTALLATION

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1

lllustration 1 Forward Position

lllustration 1 shows a steerer forward using Radial Drive. By plating the steererat the forward end of the cockpit the helmsman has the protection of the companionway dodger and has quick and easy access to the cabin below. The forward location also keeps the cockpit activity aft of the helm and when in shorthanded situations allows the helmsman to steer and handle the sheets with the minimum of difficulty. Edson suggests using a large size wheel within 2" or 3" of the cockpit seats if the boat has a bridge deck, as there will be no need for guests or crew to "slide" by the wheel. We also recommend the installation of a pedestal guard as a handhold for crew members going below. The larger wheel will allow the helmsman to comfortably lean against the coaming and to have excellent all-around visibility. In many conversions from tiller to wheel the forward locations makes for the least cockpit layout change as i t places the helmsman in approximately the same location with the wheel as with the tiller. For a racing boat all the action is aft and when not tacking the crew can sit to weather and forward if it improves the balance of the boat.

Pull-Pull easily adapts for use with outboard rudder boats. As shown above, cables run beneath the sail locker on one side and under a quarter-berth on the other. lllustration 3 shows a pedestal steering installation on an average 25 to 30 footer with transom hung rudder. The Edson Fig. 612 * 1 I Quadrant series can be used on most all boats of this design. The quadrant should be mounted fairly high on the rudder to fit within the lazarette, or so a box or helmsman's seat can be built over it as illustrated. As a rough guide to the following Fig. 612 Quadrant sizes should be used. Boat Length: 20 to 36 feeff6-11 m. . . . . . . I 0 inch size126 cm 37 to 45 feeff12-14m.. .14 inch size136 cm 45 to 60 feeU14-18 m. . . . . . .20 inch size150 cm The above chart must be used with caution, obviously a very hardto-steer boat must go to the next size larger quadrant than is indicated. With all Edson Pedestals the quadrant size in inches is roughly equal to tiller length in feet. As in any opening in the transom, it must be booted or a drain pan or area must be installed to prevent water from getting into the structure of the boat. As a further guide the 10" quadrant requires a transom hole of about 2"/5 cm by 6"/15 cm.

lllustration 7
In lllustration 7 the rudder post is vertical and there is a quarter berth on the port side aft. The solution was to mount the quadrant angled to one side and to lead one of the wires directly into the quadrant and the other aft to a sheave and back into the quadrant. As a matter of interest one of the earlier boats on which this was done was a 36 footer. The idler sheaves were 4"/10 cm as the wire only went around the idler sheaves 90 degrees. On the aft single sheave i t was 6"/15cm as the wire goes around it about 180 degrees, the larger sheave will increase the feel of the rudder from reduced wire friction. GENERAL As in all installations, Edson tries to reduce the number of sheaves. They must be bought, installed, and each one adds its friction effect. A good "needle bearing" pedestal with as few sheaves as possible with well oiled bushings and a well hung rudder will give a very sensitive system and one that is free of problems.' The "T" Cockpit can have the steerer placed aft (pictured) so the helmsman is sitting on the aft seat and sliding around to the sides or another variation would place the pedestal well forward in the cockpit and bring the primary winches aft by the base of the "T" so the winch grinders can stand by the handles. Likewise, downwind under a spinnaker i t would give the sheet handlers more room and hopefully less chance of error. One distinct advantage of the aft steerer arrangement is that the helmsman can see all that is going on in the cockpit, an important factor when racing. When the steerer is placed at the extreme aft end of the boat be sure that the jib luff can be easily seen and i t not being visually blocked by the main.

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The aft location of the wheel in a long narrow cockpit is the traditional location of a pedestal. The helmsman can see all of the action and if a line jams or some other problem develo~s he can take the best corrective action. if the steerer is well aft it'is a good idea to put on the narrow pedestalguard and for the engine controls to be placed on the steerer. When planning this installation beware of such potential problems as a tall helmsman's head hitting the backstay or the possibility of the main sheet catching the pedestal; also be certain you have enough space, (at least 16"141 cm) clearance behind the wheel to allow foot room at the helm. At Edson we can always tell when a pedestal is too far aft; there are heel marks on the end of the cockpit where the helmsman has tried to move his feet aft and found no space. lllustration 5 shows a cockpit with the steerer aft and in this case a separated helm. Note that all of the steering mechanisms are within the cockpit bridge. The quadrant is mounted on the aft side of the rudder post which necessitates crossing the cables within the pedestal. Note the Fig. 727Safety Clutch can bring the control cables down just aft of the bridge deck so they lead directly to the engine and do not get involved with the bridge deck and the moving quadrant.

MID-COCKPIT POSITION Placing the steerer in the middle of the cockpit or within two feet of either end can give a good balance. The crew can be forward or aft whichever makes the boat go best. With the steerer in the relative center of the cockpit the spinnaker winches can be aft and the genoa winches forward; when racing this keeps the spinnaker action behind the helmsman and yet allows the helmsman to assist with the jib winches if needed. When cruising the mid-cockpit arrangement enables the guests to relax aft and not get involved in sailing the boat while the skipper can steer and tack the boat with ease.
IP', When placing the pedestal at mid-cockpit keep at least 15"/38 cn clearance from the bridge deck or companionway. This will p r e w " vent a crew member from having to stand with one foot on the bridge deck, a dangerous'off-balance situation. The helmsman normally will sit to one side of the wheel or stand behind the wheel. Edson's Helmsman's Seat can fit neatly between the seat risers and its arched center section raises the helmsman for better visability.

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lllus tra tion 6

Please remember that fiberglass by nature is flexible material and the steering system must be set up so it is strong yet can stand a certain amount of movement. The smoothest installations are "There's a message." those with the best reinforcing

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If you have plans or ideas that you feel would be helpful to other boat owners please send them to Edson and we will pass them on to all our customers.

aS4bn

ENGINEERING AND INSTALLATION GUIDE
MIDSHIP COCKPIT STEERING

pi
11

ENGIINEERIING AND IMSTALWTION GUIDE

INTRODUCTION This guide has been prepared to enable the designer, builder and boat owner in planning out the various methods of installing a wire steering system in a mid-ship cockpit boat. Edson offers two types of wire rope systems for the midship cockpit boat, the conventional wire system and the new Pull-Pull Conduit Steering System, ideal for boats up to 42' in length. Regardless of the type and size of midship cockpit boat, the steering system should be thought out at the time the boat is designed or at least before the interior is in place. There are virtually no boats that can not be adapted to a wire system. Whichever system used, the advantages of a wire system are many and important. The system is simple; this makes it excellent for those boats going off-shore or to remote areas. A roller chain pulls the rudder to one side or the other. If the wire fails you can rig a new wire. Try that with other types of steerers. It is in effect a screw, nut and bolt philosophy of design. The steering will give the boat a personality. There is feel, response, flexibility and if you want to settle down, put on a dampening brake, add a simple mechanical Auto-Pilot. These will give you the best of all worlds. PLANNING FOR THE WIRE ROPE SYSTEM When using wire rope and sheaves, we are dealing with a series of straight lines or for the sake of visualization, straight connecting rods. lllustration 1 shows two basic methods - we will call them port and starboard for the sake of simplicity. Starboard - The wire is led to starboard just under the deck level, over the heads of those passing through the aft cabin passage. The wire is then led aft just inside of the sheer line to a turning sheave which directs the wire into
Port - The steering cable goes engine trunk anddown to a sheav engine room floor level, then aft to a sheave and up to a sheave a

Needless to say, both Port and Starboard can be run the same - down or to the side. it is all a matter of taking the best course for the available space and the location of suitable attaching structures for the sheaves. The Auto-Pilot has been attached to a second quadrant mounted on the aft side of the rudder post and in this case down low. With the separate quadrant the boat has in effect two steering systems - one automatic one mechanical. For further Auto-Pilot information see Auto-Pilot section. lllustrations 2 and 3 show the most commonly used method of runnina - the wire in a mid-ship Cockpit Boat. The wire is run to either the port or starboard side by using the Edson Fig. 607 Adjustable Idler. This directs the wire aft a small amount, down a small amount to double sheaves that are mounted on the aft engine room bulkhead. Care must be taken to make sure that the wire is clear of the - aoorooriate sail lockers. The wire is then directed aft at a level just under the bunk top and on the outside of the backs of the drawers in an area aenerallv considered to be otherwise unusable. In manvcases the wire is run alona the exhaust line trunk. Aft the two sheaves are mounted on a stiffening bulkhead, one sheave leads the wire directly to the quadrant, the other sheave across the boat to a sheave and then back to the auadrant. Care must be taken to make sure that the wires are led correctly to give the boat directional rather than reverse steering. This installation points to the importance of using existing or planned bulkheads and stifi6; fening for mounting of the sheaves, easier, stronger, a n a i , h , , simpler. ( 4 11 lllustration 2 the Auto-Pilot steering cables have been diverted so the pilot can be mounted on a shelf in the aft end of the engine room in an otherwise unused but generally crowded area.

0

MlDSHlP COCKPIT STEERING (Continued)

ds4t.n

lllustration 3 shows another form of placing the Pedestal in the Mid-Ship Cockpit Boat. The wire is basically led down and run beneath the aft cabin sole. The Pedestal can be placed aft in the cockpit with the possibility of placing the helmsman on a raised seat for better visibility over the house.

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lllustration 3

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Illustration 2

This installation assumes the engine is directly below the Pedestal and it is necessary to place Fig. 607 Adjustable Idler under the pedestal to direct the wire aft a small amount. The sheaves at the floor level can be placed on the very aft end of the engine compartment and they in turn will lead aft to two sheaves placed on a transverse bulkhead directly under the aft cabin floor. These in turn direct the wire aft, up and out to two sheaves mounted on the ' O u n k front bulkheads and then directed into the quadrant. Emergency steering can be placed on top of the rudder post by simply removing the aft cushion and by placing a tiller at this point. Some owners prefer an extension that goes through the aft deck to allow placing the tiller over the aft deck house. This is a personal preference, but by all means have an emergency method of steering. The lllustration 4 installation is used on boats with passage ways, toilets or lockers on both sides of the cockpit foot well. With this layout one way to steerthe boat is to run the wires under the floor of the aft stateroom.

stringers. The wire is then directed aft under the floor in the natural "V" of the hull. Aft to two sheaves which can be placed on a simple structure and then out and up to two sheaves and then into the quadrant. Note how the sheaves can be fastened to existing bunk fronts andlor bulkheads. Very important to keep costs in line as well as to keep the structures simple. . PLANNING FOR THE PULL-PULL SYSTEM Edson's new Pull-Pull Steering System is ideal for mid-ship cockpit boats up to about 42' in length. The Pull-Pull System is an alternative to the standard wire rope and sheave installation. The following illustrations show just a few of the many uses of Pull-Pull Steering. lllustration 5 shows a Destroyer Wheel with a Fig. 338 or 410 Steerer mounted in a cockpit moldment. The moldment houses engine instrumentation and controls while serving as a table for cockpit entertaining. Since the quadrant is mounted on the aft side of the rudderpost, the cables are crossed within this structure for proper steering direction. In this case, one cable runs along the port side to the quadrant while the other cable runs directly down the starboard side. With this type installation, the cables can be anchored to an existing moldment or plywood reinforcement. Here, it is attached to the plywood reinforcement normally placed under aft bunks. lllustration 6 shows the Pedestal installation using the 841 Mounting Plate for attaching the cable. The cable is routed along the starboard side under a bunk to a Radial Drive. One wire can run across to a sheave mounted on the other side and back into a regular quadrant if space does

COMBINATION PULL-PULL CABLE AND SHEAVES lllustration 7 shows the cable running down, over the engine, and aft under the cabin sole. With the sharp bends aft, the system converts to a standard wire rope and sheave arrangement connected to a quadrant or Radial Drive.
for further in formation please refer to the "Pull.-Pull"section and the "How to Inst~al1"sectiono f the catalog.

lllustra tion 1

The Pedestal can be placed at the point up against the ridge deck or in the normal aft position in the cockpit. If laced forward it does allow the helmsman to be protected Q n poor weather by the dodger. In addition, the engine controls and instrumentation can all be mounted on the aft end of the house. This can then place all of the wiring in an easily accessible trunk within the main cabin. The wire from the pedestal goes down and is "Veed" slightly to allow the wires to go to sheaves fastened to the engine

dsan
PEDESTAL STEERER INSTALLATION INSTRUCTIONS
INTRODUCTION This section has been prepared for both amateurs and professionals to assist in the installation of the Edson pedestal steering systems. We have tried to take the installation step by step in hopes the job will not only go faster but also much easier. You will find many suggestions along with simple illustrations to guide you - but in the marine trade there is always an experience factor which cannot be covered on paper. If you require assistance or additional information write or call The Edson Corporation. We offer complete engineering services at no charge or obligation. Edson has over 1,000 installation drawings which we call S-data sheets. I f you own a stock boat, feel free to request a data sheet on that boat, or i f you are building orpurchasing a custom boat, send us a print, or good sketch and we will be glad to send you a complete proposaland a data sheet on your boat or a similar installation.
L C

PEDESTAL STEERER INSTALLATION (CONT.)
For hollow pipe stock the Drive Wheel or quadrant must be positioned on the post by tightening the bolts. Only after all the final measurements and adjustments for the entire system have been made-drillthrough the hub and rudder post for a stainless steel pin. The third system is an alternative to cutting a keyway in solid stock or through drilling for a pin in hollow pipestock. The same positioning method as used for the pin must be observed and only after all final adjustments for the entire system have been made, drill and tap for two stainless steel Ysn19.52mmcap screws through the hub and well into the rudder p-The actual drilling operation whether for the pin or for the set screws should be the last step in the entire installation.
16"114.28 mm 1/16"/1.5mm HOLE

must be installed if the cut is less than 12" to 15" above the waterline and the boat should be hauled for this operation. Where the cut will be made is determined by the location of the Radial Drive Wheel or auadrant and the size of the idler sheaves (see Figs. 1 and 2). ~ e a s u r e f r o m under the cockpit floor either 5"112.7& or 7"118cm down depending on your sheave size. This locates the wire groove in the Drive Wheel or quadrant. With a square mark its location on the tube. Start measuring from this mark. For a quadrant installation measuring up 2"138mm then down 7"l 17.8cm. For Radial Drive with the hub up measure up 4"IlOcm and then down 8% "120.9cm. For Radial Drive with the hub down measure up lr/z"/38mm and then down 9"122.8cm. Mark the lines and cut the tube at 90".

FIG. 6
Box - Fiberglass
in Place Fig. 697 Stuffi

FIG. 1
ADD FOR WOOD SUPPORT UNDER THE PEDESTAL I F REQUIRED (SEE FIG. 9)

f l - 7

LOCATION OF PEDESTAL STEERER After carefully unpacking the Edson equipment, lay out all the components and familiarize yourself with the system by arranging the parts as closely as possible to the order of assembly. From the architect's drawing or the boat's data sheet find the ideal location for the installation of the pedestal steerer. Set your pedestal, with the wheel attached, at this position and check the cockpit layout. Will you be able to crank your winches? Sit and stand comfortably? Will the main sheet clear the wheel? Adjust your steerer until you are satisfied you have the best location possible. We suggest at least 21 "154cm from the pedestal base (dead center aft to the rear of the cockpit for standing room). Now check the area under the cockpit floor to make certain the pedestal location chosen will allow freedom of installation for all the components. With the pedestal carefully aligned fore and aft and centered, use Edson's Template EB237 furnished with each order to mark the location of the four bolt holes. At the center drill a thru hole %6"/7.5mmdia. This tiny hole will mark the pedestal location when working under the cockpit floor. Do not drill any other holes at this time. (The small hole can easily be filled should you decide to relocate the steerer.) PREPARATION OFTHE RUDDER POST I f you are ordering a new boat with a tiller but plan to add a pedestal steerer at a future date, have your boat builder install a stuffing box and key the rudder post. This can be done by the builder at a nominal cost and will make the steerer installation far easier for you when the time comes. If your boat's rudder i s equipped with a stuffing box the Edson PedestalSteerer may be installed with the boat in the water. If your rudder post enters through a fiberglass tube from the hull to the floor, a portion of this tube will have to be cut away to expose the rudder post for the installation of the Radial Drive Wheel or the quadrant. Although Edson recommends a stuffing box, some boats with high enough freeboard can do without one. A stuffing box

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I I

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15"112.7cmfor 4 " sheaves

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A suitable stuffing box should be used to seal the rudder post at the tubing. Edson's Fig. 697 Stuffing BoxlBearing is preferred, as it serves as additional bearing, however, hose type stuffing boxes may be used. Edson stuffing boxes are available for rudder posts from l"12.51cm diameter 31/~"/8.9~m diameter and are approximately 4"170.2cm in length. The stuffing box must be installed above the water line. It mounts on top of the lower cut in the fiberglass tube (see Figs. 1and 2) and is heavily wrapped with fiberglass and epoxy resin. As on all rudders be sure and place the Fig. 697 Stuffing Box within about 11/z"l3.8cm of the bottom of the quaddrant or Drive Wheel and supbort it well for the rudder loads. Figs. 1 , 2, 6, 7 and 8 show typical stuffing box arrangements. With the rudder post back in the boat, place the drive wheel or the quadrant onto the post at the determined position. NOTE: As a simple safety factor, install a stainless steel hose clamp directly under the quadrant or Drive Wheel. This will prevent slippage if the quadrant or Drive Wheel were to loosen in service. PEDESTAL SUPPORT

3 % RUOOER

RADIAL DRIVE

FIG. 10

C O N V E N n O N A LRUDDER

FIG. 8

Fig. 801 Recessed idler uses a standard Fig. 711 or 776 ldler inside and is installed similarly. A special template will be supplied with Fig. 801. Fig. 807 Offshore CruisinglRacing ldler will be supplied with separate instructions covering Fig. 10. All other installation procedures are the same. RADIAL DRIVE INSTALLATION Alignment between the idler and the Drive Wheel is done by raising or lowering the Drive Wheel on the rudderpost. Be sure and cut the keyway longer than necessary for final adjustment. When locating the keyway, decide whether you will be mounting the Drive Wheel hub up or hub down, because the wire line is not at the center of the hub. Cable tension is adjusted using 2 Fig. 618 Wire Rope Takeup Eyes as in the standard quadrant system. On pedestal installations, with the rudderpost raked forward or aft you may require a block of wood between the cockpit floor and the idler to lower the idler for a good lead to the Drive Wheel. An alternative, sometimes used on racing yachts for ultimate feel, is using a 6 " idler to lower the wire lead. The Drive Wheel is supplied with a welded steel rudder stop which can be mounted above or below the Drive Wheel forward or aft. (See Figs. 27 thru 32 for installing proper stops.)

FIG. 2 There are three methods of preparing and attaching the Radial Drive wheel or the quadrant to the rudder post. The most secure method for solid stock is cutting or milling a keyway in the rudder post, and the drive wheel or quadrant. Be sure and cut the keyway longer than necessary for final adjustment, and the possible addition of an autopilot.

On many boats the cockpit floor will require "beefing up" at the pedestal, one method is to install a piece of 1/2"113mm to 3hr' 19mm plywood about 2 feet square under the cockpit floor (see Fig. 9). , - - - -- - COCKPIT FLOOR
, :

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1116"/1.5mm HOLE

GLASS PLACE IN

WOOD SUPPORT

FIG. 9

li 1

P-

FIG. 4

PIPE STOCK POST
&OSOL

PIN

1

The wood should be securely fastened by glassing in with epoxy resin and several layers of mat (fiberglass kits are available from your local marine dealers). The strain of a pedestal steerer on the cockpit is severe and we recommend this type of suppart. The wood support also makes a smooth working surface for mounting the idler sheaves. On a wood boat a well seasoned blocking should be installed between the beams under where your pedestal will mount. If your cockpit floor is rigid (no flexing or oil canning effect) and is fairly smooth on the underside you can eliminate the extra support.
LOCATION FOR 2
KEY

Wire Must Lead lnto Straight Drive Wheel.

0

POSITIONINGTHE IDLER

N O T E : Minimum distances " sheaves. A d d are for 4 2" for 6" sheaves.

Note: Quadrants and Radial Drive Wheels must clamp tightly onto the rudder post.

Whether installing a Fig. 776 Idler, 711 Idler, or a Fig. 842 Dropped Conduit Mounting Plate, at the previously marked location for the pedestal, drill four holes through the cockpit floor. At this time saw or drill one5" diameter opening. This eliminates the necessity of drilling four separate holes when using Edson Engine Controls andlor the optional instrument pods. Secure the idler in position with the pedestal bolts, and temporarily adjust the angle of the idler sheaves.

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Wire Must Lead Straight I n t o Drive Wheel. Tank

'Up t o 5' if specified i n your order. :Up t o 4' i f specified in y o u r order.

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PEDESTAL STEERER INSTALLATION (CONT.)
METHODS FOR INSTALLING SHEAVES 1. The sheaves may be mounted on wood supports that tie the cockpit to the bottom of the boat and keep the steering loads from wracking the cockpit with resultant bending of the rudder post. 2. The use of an Edson Fig. 739 or 740 bracket that bolts to well glassed in wood blocks. This system is excellent for those boats that have an adequate transverse bulkhead to take the loads. INSTALLING SHEAVE SUPPORTS Fig. 12 shows the time honored "Edson Method" of glassing in wooden sheave supports. The port side shows the wood support running from the inside sail locker to the bottom of the boat. It should be glassed or bolted and made smooth so it does not catch your sails. The starboard side indicates a modification when a quarter berth or other structure limits the use of the cockpit bulkhead. Here the sheave support butts against the cockpit floor or pedestal support. Use straight grained mahogany approximately 1M"x 8 and long enough to reach between the outboard side of the cockpit seat risers and the hull. Bond in place with epoxy resin and glass cloth, for added support we recommend a wood (same stock) spreader between the two sheave supports (see Fig. 12). INSTALLING BRACKET The Figs. 739 and 740 are alternative methods that can be easier on those boats where the cockpit seat risers are alongside the radius of the quadrant and the pedestal is as shown on Fig. 17. This system can be used interchangeably with the "Edson Method" or mounting wood blocks for the necessary sheave support. The preferred sheave bracket installation (shown in Fig. 17) uses approximately 2"1 5crn by 12"130cm to 18"146crn wood blocks glassed into the sail locker sides of the cockpit floor. When necessary to bolt thru the cockpit floor, keep as wide as possible with the bolts as near the edge of the cockpit gutter as possible. This reduces the chances of oil canning the floor and resulting cracking of the gel coat.

(.J~uLL-PULL INSTALLATION When installing the Pull-Pull System the two conduits can either be routed port and starboard (Fig. 19) or both down the same side (Fig. 20). If space is at a premium lead both conduits down the same side and then route one wire across to a sheave mounted on the opposite side and back to the quadrant (Fig. 21). The conduits must be terminated by drilling a 3hr1 hole in either an existing moldment or a plywood bulkhead. Anchor the conduits in place by using the nuts and washers supplied (Fig. 22). When terminating the conduits make sure they lead the wire rope properly either to the steerer or to the correct groove of the Quadrant or Radial Drive. The Pull-Pull conduit has a minimum bending radius of 8" and for the smoothest steering try to keep the number of sharp bends to a minimum. Once the system is hooked up tighten the wire rope to eliminate all play, but do not overtighten.

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PEDESTAL STEERER INSTALLATION (CONT.)
Use 3hs"14.76mrn for 4"llOcm sheaves or 1 h "16.35mm dia. for 6" sheaves. Secure the roller chain adapters to one end of each length of wire (use non-magnetic fittings). do not use wire clamps as they might lock within the pedestal. Be sure the chain is centered over the sprocket when the quadrant is centered midship (rudder in fore and aft position). This is important to keep end fittings on the chain from over-riding and damaging the sprocket. Lead the two wires around the idler sheaves, the outboard sheaves and around the quadrant to the eye bolts. (The eye bolts should be in a slack-off position.((Fig. 24)
CLEVIS HEAD

.FIG 618 TAKE-UP

TWO WIRE ROPE CLAMPS

FIG. 16

When installing the Radial Drive, lead the wire rope directly from the idler around the Drive Wheel to the eye bolts (Fig. 25). Secure the wire rope with the wire rope clamps (see Fig. 24 and 25). Tighten up the cables with the eye bolts but do not overtighten. To properly tighten cables, lock the wheel in position using the pedestal brake, or by tying off the wheel. Cable tension is best when you cannot move the quadrant or Drive Wheel by hand with the wheel locked in place. Overtightening will greatly reduce the sensitivity of the system. With one person at the wheel and one watching the machinery, turn the wheel from hard over to hard over checking for any binding or misalignment in the system. The man at the wheel can check to see that the ends at the chain never reach the sprocket.

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FIG. 12

FIG. 13

NOTE: For RADIAL DRIVE cross the cables inside the pedestal for proper steering direction.

POSITIONINGTHE SHEAVES The location of the sheaves is crucial for any misalignment will cause binding in the system. The edge of the sheave which receives the wire from the quadrant must be on tlie same plane as the correct groove i n the quadrant (see Fig. 15). Simply adjust the outboard sheaves (using the "c" clamp) up or down until the two sheaves and the quadrant appear to be on the same level (see Fig 15). This can be done visually but as a check you can use a level or take measurements from the overhead. . FIG. 17
FIG.

PEDESTAL INSTALLATION Install the pedestal as shown in Fig. 23, using four Fig. 646 Pedestal Mounting Bolts. ALIGNMENT OFTHE SHEAVES Alignment is not difficult but must be done with care. One of the easiest methods is to substitute shock cord for the wire cable. The shock cord should go over the pedestal sprocket and be "fished" through the deck, the idler sheaves around the outboard sheaves, into the grooves of the quadrant and tied with a small amount of tension to the Fig. 618 Take UP 24 . Eyes (Figs. . and 25).
~

Wire musl enter directly opposite of where it fastens.

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COCKPITSEATF~ISER THRU BOLT IF POSSIBLE

FIG. 14

NOTE: II~..-ZOS.S. BOLTS & NUTSARE SUPPLIED A N 0 MUST BE INSTALLEO

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.= -"

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EPOXY

FIG. 15

Now adjust the outboard sheaves by angling up or down or raise and lower the Drive Wheel on the rudderpost to insure a fair lead to the idler sheaves and the grooves in the quadrant or Drive Wheel. When you are certain they are properly positioned you can permanently bolt the sheaves to their supports. Use large backup washers between the nut and the wood sheave supports. th the shock cord removed, and all the components fastened wn you are now ready to install the steering cable.

SPECIAL INSTALLATION NOTES NOTE: Do not use a magnet when checking for magnetism use a compass or magnometer. In any installation of this nature some boats may require slight variations to the preceding Edson recommendations. When doing so, be sure to use good judgement and sound engineering principals. We also recommend consulting ABYC safety standards particularly with respect to compass light wiring, push-pull engine control connections, electrolytic corrosion (electrolysis), lightening bonding, and other boat building techniques. If you have any doubts, or questions, regarding installation please contact Edson. NOTE: For moreinformation on "Safety Standards For Small Craft" write to: American Boat and Yacht Council, P.O. Box 806, 190 Ketcham Ave., Amityville, N.Y. 11710.

Locate the bracket with the.quadrant stop inside the 90" segment of the quadrant. In so doing, the sheaves will automatically be correctly aligned with the exception of vertical adjustment. Although Edson has the "A" dimension for most stock boats on record, it is advisable to supply the "A" dimension to suit your own installation plan when ordering.

INSTALLING THE CABLE Measure the amount of wire needed and cut off two lengths of stainless steel wire (7 x 19 non-magnetic) about two feet longer than the required length.

PEDESTAL STEERER INSTALLATION (CONT.)
INSTALLING THE RUDDER STOPS The steering system must have stops to pick up the loads at the hard over position. Although Radial Drive Wheels and Sheave Brackets are supplied with rudder stops, the preferred method is to install the rudder stops into the hull independently of the steering system. Rudder stops must be installed to prevent the rudder from hitting the hull or the chain adapters from damaging the sprocket. Be sure the stops are strong for they will take a lot of strain at one time or another during the life of your boat. The following sketches show the best methods of installing the stops.

CONDENSED EDSON PEDESTAL MAINTENANCE GUIDE
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All Radial Drive Wheels are provided with a rudder stop. The stops can be mounted fore or aft and to either the top or the bottom of the drive wheel (Figs. 27 and 30). Blocks of wood should be fiberglassed in place for the stop to hit. Stops must hit squarely and as low on the stop as possible. The best rudder stop arrangement, Fig. 37, uses a tiller arm or its equivalent as a stop. This keeps the stops independent of the steering. An alternative method for the rudder stop is to place a straight grained mahogany beam athwartships and cut out two notches for the stop to hit squarely, keeping the total travel of the Drive Wheel between 60 and 70 degrees (Fig. 3 2 ) . / /

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LAZARETTE FLOOR , ,

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UDDER STOP

2 x 4 POST CAN BE SECURED TOP AND BOTTOM UNDER COCKPIT OR BOLTED TO BULKHEAD OR SHEAVE SUPPORT

FIG. 32

EMERGENCY STEERING . . . i , ! Provisions' must be made for emergency steering. This can be accomplished by leaving the existing dller head so that your present tiller,can be used for emergency steering.
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Make sure the quadrant hits squarely and that there is a slight cutout for the wire. Most sailboats have the stops set to keep the total travel to between 60 and 70 degrees.
STOP IS INDEPENDENT

IMPORTANTNOTE: If at any time you suspect steering gear, the cause should be checked out immediately, to do so can result in loss of steering, and loss If YOU have any questions regarding the steering system on yourQ,) boat which you have been unable to answer thru this catalogue, elease contact the Edson Corporation at (617)995-9711 immediately. Figs. 32, 33 and 34 show several possible arrangements for emergency steering with existing tiller heads. Edson pedestals can be purchased with milled bases as in (Fig. 34) to provide a neat compact arrangement. Figs. 35, 36, and 37 show different ways to make up an emergency tiller for both solid and hollow stock rudder posts. Before modifying your rudder post be sure the tiller head fitting is not the thrust bearing holding the rudder up in the boat.

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This guide has been prepared to assist you in the proper maintenance of your Edson Steering System. To properly maintain the moving parts in the top of the pedestal, it is necessary to remove the compass and its cylinder. For proper alignment when re-installing the compass, we recommend placing 3 or 4 lengths of tape on the pedestal and compass as shown below. Slit the tape when removing compass, align the strips of tape when re-installing the compass for visual compass re-alignment Your compass MUST then be checked for accuracy. Lubrication of needle bearings should be done by squeezing Edson Fig. #827 Teflon Lubricant into the holes located on top of the bearing housings inside the pedestal bowl. Spin the wheel when squeezing the lubricant in to make sure the entire bearing is serviced. Winch grease or water pump grease can be used as an alternative, but don't let the bearings run dry. Do not over grease as it will run onto the brake pads. Oil the chain with #30 weight motor oil. Do not grease chain as it does not penetrate the links. Inspect the condition of the wire, tension of the wire and lightly oil. Edson recommends placing about 5 layers of "Kleenex" on the palm of your hand, squirt oil on the tissues and lightly oil the wire. This will lubricate the strands but will also "flag" a broken or hooked strand by tearing off a small section of tissue. ~fyou do have a wire break, replace the wire immediately. See Edson Fig. 775 wire and chain rep~acement kits. (Calltion: Wire splinters can cause painful cuts.) Replace the wire after5 vears. If still aood. . , ,keeo . the old wire on board as a soare. o ; check for proper wire tension, lock thewheel in by using the pedestal brake, or by tying off the wheel. Cable tension is best when you cannot move the quadrant or drive wheel by hand with the wheel locked in place. Over tightening will greatly reduce the sensitivity of the system. O l t must be emphasized that all on board must be familiar with the care and operation of the Steering System and engine controls. One person must be assigned the job of maintenance and must be thorouahlv familiar with the o~eration and intent of all the equipment.-lf at any time you; Steering System makes strange noises or reacts differently than it has previously, you must find the causes immediately and correct the problem. Screws, nuts, bolts as Well as clevis and cotter pins that are part of the steering system, engine controls, or pedestal accessories must be checked regularly fortightness and wear. Failure to insoect all steerina oarts. enaine controls and ~edestal ac-

cessories may cause loss of control or failure of the engine or steering system. All boats must have an emergency tiller or its equivalent and all on board must be familiar with its location and operation. An emergency tiller drill is just as important as a man-overboard drill and must be regularly conducted. On a new boat and at least once a year, inspect the system when under a strong load. On a calm day and under power, go away from the other boats and with the person who is assigned the maintenance watching from below, put the wheel hard over at full throttle. The maintenance man should watch carefully for all parts of the system bending, distorting, creaking, or giving any indication of failing if placed under a heavy load for a period of time. If for any reason, something did fail or needs adjusting the day is early and you will have plenty of time. When leaving your boat at her mooring or slip, make sure that your Edson wheel brake is tight or that your wheel is properly tied off. DO NOT LEAVE THE STEERING SYSTEM TO FREE WHEEL. The pedestal exterior should be cleaned with deterge.nt and water, do not use acetone orland any other strong solvents as they may damage the finish. Edson will be pleased to assist vou. Call us or write us if we can helo.

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PEDESTAL SHAFT DISASSEMBLY INSTRUCTIONS
1. With the wheel and brake assembly removed, replace the wheel nut with any standard thread 314" or 1" hex nut. 2. Loosen the steering cables and chain by backing off the take-up eyes at the quadrant or radial driver, lift thechain off the sprocket and tie to the forward part of the bowl. 3. Align the notch in the aft fibre washer with "V" stamped on the sprocket. 4. Carefully drive the pin out of the sprocket (drive from the round end toward the grooved end). 5. With a piece of wood against the hex nut, gently tap the wheel shaft from the housing, see illustration below. Be careful not to drop the shaft components into the pedestal. 6. Remove sprocket, two fibre washers and forward needle . . Deanng. 7. Wipe out any dirt or old grease before reassembly. To reassemble reverse the above procedure do not greasethe bearings until reassembly is completed. You must check your compass for possible re-alignment or recompensation. Note: Check any electric wiring within the pedestal with an OHM

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meter to be certain the oolaritv is correct.

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FIG. 33
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FIG.30

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